{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"JLJ4974478","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"uses_of_new_measures_the_different_measures_and_weights_1793_engraving","item_variant":"undefined"},{"item_id":"JLJ4573755","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"representation_of_an_inspector_of_weights_and_measures_engraving","item_variant":"undefined"},{"item_id":"XYL155434","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"turkish_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"takyuddin_and_other_astronomers_at_the_galata_observatory_founded_in_1557_by_sultan_suleyman_from_th","item_variant":"undefined"},{"item_id":"NDS236979","item_category":"photo","item_category2":"in_copyright","item_category3":"premium","item_category4":"hollands_norman","item_category5":"not_balown","item_list_name":"search_results","item_name":"cabbage_after_magritte_1995_photo","item_variant":"undefined"},{"item_id":"XIR154938","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"delion_j_p_18th_century_after","item_category5":"balown","item_list_name":"search_results","item_name":"use_of_the_new_measures_1795_coloured_engraving","item_variant":"undefined"},{"item_id":"MFR135761","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"orrery_made_by_newton_co_london_brass","item_variant":"undefined"},{"item_id":"XIR170076","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"weyden_rogier_van_der_1399_1464","item_category5":"balown","item_list_name":"search_results","item_name":"st_michael_weighing_the_souls_from_the_last_judgement_c_1445_50_oil_on_panel_detail_of_170072","item_variant":"undefined"},{"item_id":"XIR38802","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reymerswaele_marinus_van_c_1490_c_1567","item_category5":"balown","item_list_name":"search_results","item_name":"the_money_changer_and_his_wife_1539_oil_on_panel","item_variant":"undefined"},{"item_id":"ELD4843734","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sack_of_rome_390_bc_brennus_putting_his_sword_in_the_balance_1866_engraving","item_variant":"undefined"},{"item_id":"XIR54330","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"valdes_leal_juan_de_1622_90","item_category5":"balown","item_list_name":"search_results","item_name":"finis_gloriae_mundi_oil_on_canvas","item_variant":"undefined"},{"item_id":"XLF3787542","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school","item_category5":"balown","item_list_name":"search_results","item_name":"shop_in_pompeii_with_bronze_balance_scale","item_variant":"undefined"},{"item_id":"PCT5618027","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"edf_electric_meter_locked_by_the_owner_of_the_house_to_prevent_it_from_being_replaced_by_a_linky_met","item_variant":"undefined"},{"item_id":"PCT5618031","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"edf_electric_meter_locked_by_the_owner_of_the_house_to_prevent_it_from_being_replaced_by_a_linky_met","item_variant":"undefined"},{"item_id":"XIR159275","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"balown","item_list_name":"search_results","item_name":"ms_lat_993_l_9_28_fol_98v_coconut_merchant_from_the_tractatus_de_herbis_by_dioscorides_vellum","item_variant":"undefined"},{"item_id":"XLE3777574","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"guidonian_hand_from_the_history_of_music_by_emil_naumann_print","item_variant":"undefined"},{"item_id":"CHT235339","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bouchot_louis_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_antoine_chaptal_1756_1832_comte_de_chanteloupe_c_1800_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR162156","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lemonnier_anicet_charles_1743_1824","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_jean_antoine_chaptal_1756_1832_comte_de_chanteloupe_oil_on_canvas","item_variant":"undefined"},{"item_id":"XLF3787547","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school","item_category5":"balown","item_list_name":"search_results","item_name":"laboratory_scales_in_the_17th_century_liebig_card_print","item_variant":"undefined"},{"item_id":"FGL5480843","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dore_gustave_1832_83","item_category5":"not_balown","item_list_name":"search_results","item_name":"la_grenouille_qui_veut_se_faire_aussi_grosse_que_le_boeuf_gravure_1861_1868","item_variant":"undefined"},{"item_id":"XIR216468","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"balown","item_list_name":"search_results","item_name":"ms_lat_993_l_9_28_fol_30_weighing_bars_of_camphor_from_tractatus_de_herbis_by_dioscorides_vellum","item_variant":"undefined"},{"item_id":"UIS5066758","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"rain_gauges_pluviometres_1788","item_variant":"undefined"},{"item_id":"PVD1695488","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"manohar_fl_1580_1620","item_category5":"not_balown","item_list_name":"search_results","item_name":"emperor_jahangir_weighs_prince_khurram_in_gold_c_1610_1615_miniature","item_variant":"undefined"},{"item_id":"CHT164289","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"table_of_weights_and_measures_mid_19th_century_colour_engraving","item_variant":"undefined"},{"item_id":"DMA1071938","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"serra_richard_b_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"w_m_iv_weights_and_measures_iv_1996_etching_with_aquatint","item_variant":"undefined"},{"item_id":"XJF447340","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"frontispiece_to_robert_fludd_s_utriusque_cosmi_historia_tractatus_secundus_de_naturae_simia_sue_tecn","item_variant":"undefined"},{"item_id":"XRE1834319","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"balown","item_list_name":"search_results","item_name":"lyn_dramer_taking_the_measurement_for_agatha_christie_s_wax_portrait_at_madame_tussaud_s_24th_march_","item_variant":"undefined"},{"item_id":"LLM2783018","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"using_a_statue_of_roland_to_measure_cloth_in_medieval_times_chromolitho","item_variant":"undefined"},{"item_id":"LLM2783021","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"laboratory_balance_17th_century_chromolitho","item_variant":"undefined"},{"item_id":"LLM2783019","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ancient_greek_stonemasons_using_measuring_instruments_chromolitho","item_variant":"undefined"},{"item_id":"MMM5470463","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sundial_with_universal_equinoxial_ring_for_latitude_0_90_degrees_with_engraved_indications_c_1635_br","item_variant":"undefined"},{"item_id":"LLM2800877","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"weights_and_measures_coloured_engraving","item_variant":"undefined"},{"item_id":"CH3899039","item_category":"object","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"ghanaian","item_category5":"not_balown","item_list_name":"search_results","item_name":"akan_goldweights_brass","item_variant":"undefined"},{"item_id":"UIS5621907","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"measuring_instruments_torsion_balances_coulomb_torsion_balance_1872","item_variant":"undefined"},{"item_id":"MMM5476584","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"harrison_john_1693_1776","item_category5":"not_balown","item_list_name":"search_results","item_name":"first_h1_marine_chronometer_made_by_john_harrison_1693_1776_between_1730_35_in_england","item_variant":"undefined"},{"item_id":"CH8832888","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_14th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"astrolabe_quadrant_1291_1310_brass","item_variant":"undefined"},{"item_id":"UIG540091","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"member_of_a_london_wardmote_inquest_in_official_dress_these_bodies_checked_weights_and_measures_for_","item_variant":"undefined"},{"item_id":"UIS5068433","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"thermometry_mercury_in_glass_thermometer_french_c_1790","item_variant":"undefined"},{"item_id":"MMM7339277","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"gemini_thomas_c_1515_62_sutton_henry_c_1624_65","item_category5":"not_balown","item_list_name":"search_results","item_name":"astrolabe_detail_obverse_c_1552_bronze","item_variant":"undefined"},{"item_id":"LLM2785139","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"molino_walter_1915_1997","item_category5":"not_balown","item_list_name":"search_results","item_name":"will_it_reach_400_an_hour_colour_litho","item_variant":"undefined"},{"item_id":"XLF3789039","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"trial_of_weights_and_measures_at_the_exchequer","item_variant":"undefined"},{"item_id":"FIA5351636","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"rozanova_olga_vladimirovna_1886_1918","item_category5":"not_balown","item_list_name":"search_results","item_name":"bureau_writing_desk_20th_century_oil_on_canvas","item_variant":"undefined"},{"item_id":"DGA547774","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"davies_nina_de_garis_1881_1965","item_category5":"not_balown","item_list_name":"search_results","item_name":"ancient_egyptian_painting_by_nina_m_davies_1936_painting","item_variant":"undefined"},{"item_id":"UIS5090058","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mini_jupe_mesure_de_la_taille_des_mini_jupes_des_etudiantes_d_une_ecole_de_chester_angleterre","item_variant":"undefined"},{"item_id":"UIG5450731","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"washington_d_c_1922_col_sherrell_superintendent_of_public_buildings_and_grounds_has_issued_an_order_","item_variant":"undefined"},{"item_id":"UIG5450757","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"arlington_farms_virginia_august_12_1929_government_scientists_experimenting_with_a_mechanical_putter","item_variant":"undefined"},{"item_id":"MMM5470026","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"on_the_flip_side_of_a_sundial_with_the_gunter_scale_18th_century_wood_and_copper","item_variant":"undefined"},{"item_id":"CH8766432","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_13th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"carved_anchor_shaped_weight_probably_anatolian_white_calcite","item_variant":"undefined"},{"item_id":"DEX5040799","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"wooden_box_containing_brassed_mathematics_instruments_late_16th_early_17th_century_brass","item_variant":"undefined"},{"item_id":"MMM5469024","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ducher_hans_fl_1574","item_category5":"not_balown","item_list_name":"search_results","item_name":"diptych_dial_unfolded_for_latitude_42_degrees_with_engraved_decorations_ivory_and_copper_object_1580","item_variant":"undefined"},{"item_id":"MMM7339255","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"habrecht_isaac_iii_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"dial_detail_of_celestial_clockwork_globe_17th_century_gilt_copper_alloy_brass_gilt_brass_blued_steel","item_variant":"undefined"},{"item_id":"CH8766382","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_13th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"two_carved_anchor_shaped_weights_probably_anatolian_white_calcite","item_variant":"undefined"},{"item_id":"CH8766431","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_13th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"carved_anchor_shaped_weight_probably_anatolian_white_calcite","item_variant":"undefined"},{"item_id":"CH8766434","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_13th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"carved_anchor_shaped_weight_probably_anatolian_white_calcite","item_variant":"undefined"},{"item_id":"XLF3787545","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"milestone_on_a_roman_road","item_variant":"undefined"},{"item_id":"PVD1695485","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_weighing_of_shah_jahan_c_1635_miniature","item_variant":"undefined"},{"item_id":"SBL7146299","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"pollaiuolo_piero_del_1443_96","item_category5":"not_balown","item_list_name":"search_results","item_name":"temperance_1470_circa_tempera_grassa_on_wood","item_variant":"undefined"},{"item_id":"MSC3663743","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"viking","item_category5":"not_balown","item_list_name":"search_results","item_name":"balance_beam_for_a_set_of_scales_from_a_viking_boat_burial_at_kiloran_bay_colonsay_argyll_875_925_ad","item_variant":"undefined"},{"item_id":"MMM5477812","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"harrison_john_1693_1776","item_category5":"not_balown","item_list_name":"search_results","item_name":"maritime_instrument_h3_marine_chronometer_made_by_john_harrison_1693_1776_between_1740_59_in_england","item_variant":"undefined"},{"item_id":"CH8832882","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_14th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"astrolabe_quadrant_1291_1310_brass","item_variant":"undefined"},{"item_id":"CH8832889","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_14th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"astrolabe_quadrant_1291_1310_brass","item_variant":"undefined"},{"item_id":"MMM5468619","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_clock_installed_at_the_door_of_the_greenwich_observatory_england_1852_metal_and_glass","item_variant":"undefined"},{"item_id":"CH8832887","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_14th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"astrolabe_quadrant_1291_1310_brass","item_variant":"undefined"},{"item_id":"EVB7078993","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"marie_prevost_s_bathing_suit_being_checked_by_the_beach_police_at_coney_island_may_1921","item_variant":"undefined"},{"item_id":"UDK5430369","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"spring_in_clamp_pulled_by_weight_photo_by_andy_crawford","item_variant":"undefined"},{"item_id":"UDK5430322","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"apple_hanging_from_a_newton_meter_measuring_force","item_variant":"undefined"},{"item_id":"UDK5430456","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"flacon_contenant_du_chlorure_de_cobalt_pese_avec_une_balance_numerique_beaker_containing_cobalt_chlo","item_variant":"undefined"},{"item_id":"UDK5430215","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"hydrometre_ou_densimetre_a_hydrometer_photo_by_harry_taylor_courtesy_of_the_natural_history_museum_l","item_variant":"undefined"},{"item_id":"UDK5430324","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_kilogram_weight_photo_by_clive_streeter_courtesy_of_the_science_museum_london","item_variant":"undefined"},{"item_id":"UDK5430399","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"device_to_test_hardness_of_metals_brinell_test_photo_by_clive_streeter","item_variant":"undefined"},{"item_id":"LZT5500505","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"hendrik_hondius_after_pieter_bruegel_the_elder_after_hieronymus_bosch_dutch_1573_1649_or_after_the_b","item_variant":"undefined"},{"item_id":"LLJ602119","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"patent_scales_engraving","item_variant":"undefined"},{"item_id":"UIG678616","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"us_government_bureau_of_weights_measures_photo","item_variant":"undefined"},{"item_id":"MEV5045952","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"codex_atlanticus_sheet_385_recto_1478_1518_pen_ink","item_variant":"undefined"},{"item_id":"UIS5069622","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"measuring_instruments_galvanometers_tangent_galvanometer_1900","item_variant":"undefined"},{"item_id":"PVD1685458","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"aga_khan_iii_receiving_his_weight_in_gold_1946_b_w_photo","item_variant":"undefined"},{"item_id":"UDK5430454","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"appareil_pour_mesurer_avec_precision_la_vitesse_de_chute_d_un_objet_apparatus_for_timing_accurately_","item_variant":"undefined"},{"item_id":"MEV5047308","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"codex_atlanticus_sheet_1058_recto_1478_1518_pen_ink","item_variant":"undefined"},{"item_id":"UDK5430210","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"gold_rimmed_barometer_photo_by_tim_ridley","item_variant":"undefined"},{"item_id":"LAL298319","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"jackson_peter_1922_2003","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_history_of_our_wonderful_world_roman_shops","item_variant":"undefined"},{"item_id":"XLF3789273","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"trial_of_weights_and_measures_at_the_exchequer","item_variant":"undefined"},{"item_id":"LLJ614565","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_post_office_weighing_machine_engraving","item_variant":"undefined"},{"item_id":"XEE4141065","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"anonymous","item_category5":"balown","item_list_name":"search_results","item_name":"measurement_of_electrical_currents_ampere_s_rule_1925_illustration","item_variant":"undefined"},{"item_id":"GIA4777416","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"use_of_new_weights_and_measures_in_1795","item_variant":"undefined"},{"item_id":"LLM3635729","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"flemish_about_1520_engraving","item_variant":"undefined"},{"item_id":"LLJ614598","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sketches_in_clerkenwell_house_of_correction_engraving","item_variant":"undefined"},{"item_id":"DMA1071939","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"serra_richard_b_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"w_m_v_weights_and_measures_v_1996_etching_with_aquatint","item_variant":"undefined"},{"item_id":"LLM2783016","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"modern_scales_chromolitho","item_variant":"undefined"},{"item_id":"UDK5430084","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"selection_de_femurs_de_differents_animaux_classe_par_ordre_de_taille_selection_of_thigh_bones_from_d","item_variant":"undefined"},{"item_id":"LLJ614564","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_weighing_machine_at_the_general_post_office_engraving","item_variant":"undefined"},{"item_id":"NTB8929117","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"aage_storlokken","item_category5":"not_balown","item_list_name":"search_results","item_name":"oslo_1954_edna_falao_is_europe_s_only_female_speedway_runner_she_is_currently_1954_photo","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"weights and measures","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":780,"search_results_page_number":1}