{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"SZT2988570","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"leslie_hore_belisha_visits_a_british_firearms_factory_1939_b_w_photo","item_variant":"undefined"},{"item_id":"SZT2999967","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"loading_of_a_tank_in_an_armaments_factory_1940_b_w_photo","item_variant":"undefined"},{"item_id":"DGA550001","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"us_m4_sherman_medium_tank_1943","item_variant":"undefined"},{"item_id":"UIG533252","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"methods_of_fortification_the_object_of_each_is_to_make_every_portion_of_the_place_fortified_capable_","item_variant":"undefined"},{"item_id":"UIG535673","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"teller_ulam_two_stage_thermonuclear_bomb_design","item_variant":"undefined"},{"item_id":"SZT3016577","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"women_in_a_german_arms_factory_1942_b_w_photo","item_variant":"undefined"},{"item_id":"AVE6327738","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"united_states_1950s_a_rocket_is_prepared_to_be_launched_at_night","item_variant":"undefined"},{"item_id":"BL243107","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"add_24945_fol_194_design_for_a_siege_engine_from_de_re_militari_by_robertus_valturius_litho","item_variant":"undefined"},{"item_id":"UIG533212","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"normal_method_of_applying_a_petard_explosive_device_to_the_gate_of_a_fortress_the_fuse_has_just_been","item_variant":"undefined"},{"item_id":"UIG3330712","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"military_engineers_at_work_1850","item_variant":"undefined"},{"item_id":"UIG3359530","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"vignette_depicting_military_engineers_at_work","item_variant":"undefined"},{"item_id":"SZT330589","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"scherl","item_category5":"not_balown","item_list_name":"search_results","item_name":"japanese_soldiers_in_china_on_the_guangzhou_front_during_the_sino_japanese_war_1937_45_b_w_photo","item_variant":"undefined"},{"item_id":"DGA550002","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"us_m4_sherman_medium_tank_1943","item_variant":"undefined"},{"item_id":"SZT3019558","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"factory_buildings_at_the_missile_testing_ground_in_peenemuende_b_w_photo","item_variant":"undefined"},{"item_id":"IWM3738175","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"british_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"smooth_finish_perfect_flight_1945_litho","item_variant":"undefined"},{"item_id":"AVE6323684","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"united_states_1960s_cars_drive_on_road_at_night","item_variant":"undefined"},{"item_id":"DGA776660","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"truncated_conical_rotating_two_gun_turret_built_by_schneider_france_20th_century","item_variant":"undefined"},{"item_id":"UIG678293","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"general_haupt_rowing_a_boat_made_of_a_pair_of_small_pontoons_1863_photo","item_variant":"undefined"},{"item_id":"DGA550026","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"italian_military_lancia_aprilia_coloniale_1939","item_variant":"undefined"},{"item_id":"STC398686","item_category":"photo","item_category2":"in_copyright","item_category3":"standard","item_category4":"hoffmann_heinrich_1885_1957","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_fuhrer_at_the_car_exhibition_in_berlin_in_1935_from_adolf_hitler_bilder_aus_dem_leben_des_fuhrer","item_variant":"undefined"},{"item_id":"DUV6523474","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"s_t_sapeur_turco","item_variant":"undefined"},{"item_id":"DGA550028","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"italian_military_lancia_aprilia_coloniale_1939","item_variant":"undefined"},{"item_id":"LLM6001559","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"beuzon_joseph_charles_fl_1892_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"military_engineers_of_the_french_army_colour_litho","item_variant":"undefined"},{"item_id":"LAL263201","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"hardy_wilf_wilfred_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"aircraft_that_change_their_shape_gouache_on_paper","item_variant":"undefined"},{"item_id":"UIG865987","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aviation_1910_german_military_airship_dirigible_gross_type","item_variant":"undefined"},{"item_id":"PCT7211831","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":"ecole_polytechnique_students_disguised_during_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"DUV6523473","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"q_r_s_t_stop_there_who_lives_officer_s_round_sapper_turco","item_variant":"undefined"},{"item_id":"PCT7211835","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":"ecole_polytechnique_students_in_a_study_room_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211841","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":"the_students_of_the_ecole_polytechnique_forming_with_their_bodies_the_inscription_chic_a_la_jone_192","item_variant":"undefined"},{"item_id":"PCT7211838","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":"ecole_polytechnique_students_forming_a_big_x_in_the_courtyard_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PNP232179","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"american_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_u_s_navy_airship_macon_b_w_photo","item_variant":"undefined"},{"item_id":"UIG865989","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aviation_1910_italian_army_dirigible_1_airship","item_variant":"undefined"},{"item_id":"PCT7211862","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1796_and_1894_1894_illustration","item_variant":"undefined"},{"item_id":"PCT7211833","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":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211834","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":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"UIG865979","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aviation_1910_united_states_military_dirigible_no_1_1906","item_variant":"undefined"},{"item_id":"SZT5182706","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"scherl","item_category5":"not_balown","item_list_name":"search_results","item_name":"armored_steam_car_1853","item_variant":"undefined"},{"item_id":"DGA550032","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"italian_military_lancia_aprilia_coloniale_1939","item_variant":"undefined"},{"item_id":"UIG864347","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"roman_soldiers_using_protective_covering","item_variant":"undefined"},{"item_id":"UIG865981","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aviation_1910_lebaudy_type_airship_french_army_had_threeof_these_dirigibles_1909","item_variant":"undefined"},{"item_id":"PVD1691814","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vernier_charles_1831_87","item_category5":"not_balown","item_list_name":"search_results","item_name":"uniforms_of_french_army_military_engineers_18_19th_century_engraving_by_charles_vernier_1831_1887","item_variant":"undefined"},{"item_id":"DGA624534","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"interior_of_cannon_factory_construction_of_howitzer_and_gun_turret","item_variant":"undefined"},{"item_id":"UIG529951","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"gunners_laying_siege_to_a_moated_and_fortified_enclosure_attackers_are_using_earth_filled_baskets_ca","item_variant":"undefined"},{"item_id":"PVD1691815","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vernier_charles_1831_87","item_category5":"not_balown","item_list_name":"search_results","item_name":"uniforms_of_french_army_engineers_18_19th_century_engraving_by_charles_vernier_1831_1887","item_variant":"undefined"},{"item_id":"PCT7211832","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":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"SZT386385","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"scherl","item_category5":"not_balown","item_list_name":"search_results","item_name":"wilhelm_bauer_s_brandtaucher_1864_b_w_photo","item_variant":"undefined"},{"item_id":"BL243108","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"add_24945_fol_90_design_for_a_siege_engine_from_de_re_militari_by_robertus_valturius_colour_litho","item_variant":"undefined"},{"item_id":"UIG558574","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"illustration_of_a_small_catapult_with_wheels_such_as_would_have_been_used_in_battle","item_variant":"undefined"},{"item_id":"UIG865991","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aviation_1910_french_military_dirigible_airship_colonel_renard_1909","item_variant":"undefined"},{"item_id":"SZT3017880","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"american_soldier_with_prisoners_in_the_concentration_camp_in_nordhausen_b_w_photo","item_variant":"undefined"},{"item_id":"PNP232180","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"american_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_u_s_airship_macon_b_w_photo","item_variant":"undefined"},{"item_id":"LLJ605005","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":"general_view_of_hungerford_and_lambeth_suspension_foot_bridge_engraving","item_variant":"undefined"},{"item_id":"UIG863345","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"military_engineering_sappers_using_sow","item_variant":"undefined"},{"item_id":"PCT7211860","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":"ecole_polytechnique_students_in_the_library_decorated_with_busts_of_the_school_s_founders_early_20th","item_variant":"undefined"},{"item_id":"PCT7211839","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":"the_students_of_the_ecole_polytechnique_forming_with_their_bodies_the_inscription_vive_la_rouge_1911","item_variant":"undefined"},{"item_id":"SZT2981837","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"adolescent_in_the_junkers_plant_1941_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211483","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"gerschel_charles_1871_1948","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_a_student_of_the_ecole_polytechnique_early_twentieth_century_b_w_photo","item_variant":"undefined"},{"item_id":"DUV6523510","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"appel_francois_antoine_1821_1882","item_category5":"not_balown","item_list_name":"search_results","item_name":"h_letter_shown_by_two_sappers_dimension_a_side","item_variant":"undefined"},{"item_id":"PCT7211846","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"monome_of_the_students_of_the_ecole_polytechnique_in_the_courtyard_of_the_school_1890_engraving","item_variant":"undefined"},{"item_id":"PCT7211845","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_course_in_the_amphitheater_of_the_ecole_polytechnique_1890_engraving","item_variant":"undefined"},{"item_id":"SZT2981836","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"adolescent_in_the_junkers_plant_1941_b_w_photo","item_variant":"undefined"},{"item_id":"SZT2999966","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"awarding_of_military_awards_in_the_sports_palace_b_w_photo","item_variant":"undefined"},{"item_id":"DGA2583747","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"pavesi_p4_100_artillery_tractor_1927_italy_20th_century","item_variant":"undefined"},{"item_id":"DGA3938560","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"scythed_siege_engine_woodcut_from_de_re_military_by_roberto_valturio_printed_by_christian_wechel_par","item_variant":"undefined"},{"item_id":"PCT7211836","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":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211837","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":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211859","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":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"DGA2583749","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"pavesi_p4_100_artillery_tractor_1927_italy_20th_century","item_variant":"undefined"},{"item_id":"PCT7211848","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1809_and_1890_1890_engraving","item_variant":"undefined"},{"item_id":"SZT2983774","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"achema_in_frankfurt_main_1937_b_w_photo","item_variant":"undefined"},{"item_id":"SZT3015373","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"aircraft_engine_production_at_rolls_royce_1932_b_w_photo","item_variant":"undefined"},{"item_id":"IWM3737964","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"hennell_thomas_barclay_1903_45","item_category5":"not_balown","item_list_name":"search_results","item_name":"hms_hunter_the_engine_room_1945_w_c_on_paper","item_variant":"undefined"},{"item_id":"LIP1061187","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_at_the_school_of_military_engineering_chatham_engraving","item_variant":"undefined"},{"item_id":"PCT7211843","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ferdinandus_alexandre_avenet_francois_called_1850_1888","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_feast_of_point_gamma_at_the_ecole_polytechnique_1878_engraving","item_variant":"undefined"},{"item_id":"SZT3667771","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruction_at_the_naval_intelligence_school_muerwik_1935_b_w_photo","item_variant":"undefined"},{"item_id":"NAM3043139","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"cap_badge_1954_metal","item_variant":"undefined"},{"item_id":"MMM7341580","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"dring_dennis_william_1904_90","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_warrant_eng_s_ball_mbe_bem_rn_1943_paper_pastel","item_variant":"undefined"},{"item_id":"DGA764940","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_philippe_paul_segur_1780_1873_writer_and_general_in_napoleon_s_army_engraving","item_variant":"undefined"},{"item_id":"LLM3650437","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"andrews_hawksley_patent_tread_and_engineering_company_b_w_photo","item_variant":"undefined"},{"item_id":"UIG529952","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"laying_siege_cannon_on_target_bottom_right_is_a_gunner_s_level_earth_filled_baskets_called_gabions_g","item_variant":"undefined"},{"item_id":"XLF3785718","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"general_eduard_totleben","item_variant":"undefined"},{"item_id":"DGA2583746","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"pavesi_p4_100_artillery_tractor_1927_italy_20th_century","item_variant":"undefined"},{"item_id":"XLF3787909","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"german_pontoon_sappers_constructing_a_bridge","item_variant":"undefined"},{"item_id":"XJF360217","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ramelli_agostino_1531_c_1608","item_category5":"balown","item_list_name":"search_results","item_name":"bridge_made_in_the_shape_of_a_boat_illustration_from_diverse_imaginary_machines_by_agostino_ramelli_","item_variant":"undefined"},{"item_id":"SZT3014416","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"production_of_the_3_ton_opel_truck_blitz_in_brandenburg_1936_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211842","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"centenary_of_the_ecole_polytechnique_inauguration_of_the_commemorative_plaque_of_the_pupils_who_died","item_variant":"undefined"},{"item_id":"PCT7211847","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1800_and_1903_engraving","item_variant":"undefined"},{"item_id":"UIG863349","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"archimedes_crow_greek_mathematician_18th_century_engraving","item_variant":"undefined"},{"item_id":"UIG866822","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"nazi_aviator_in_monoplane_c_1928","item_variant":"undefined"},{"item_id":"UIG2603983","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_ericsson_1803_1889_in_uniform","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"military engineering","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":746,"search_results_page_number":3}