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Long-Distance Test Board of San Francisco Home Telephone Company (b/w photo)

Long-Distance Test Board of San Francisco Home Telephone Company (b/w photo)
Asset - General information
Largest available format 2947 × 4493 px 2 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB]
Large 2947 × 4493 px 250 × 380 mm 2.4 MB
Medium 672 × 1024 px 57 × 87 mm 787 KB
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IMAGE number
LLM7180655
Image title
Long-Distance Test Board of San Francisco Home Telephone Company (b/w photo)
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Photographer
American Photographer, (20th century) / American
Location
Private Collection
Medium
black and white photograph
Date
C20th AD
Image description

Long-Distance Test Board of San Francisco Home Telephone Company. Illustration for Cyclopedia of Telephony and Telegraphy (American Technical Society, Chicago, 1920).

Photo credit
© Look and Learn / Bridgeman Images
Image keywords
20th century / white / colour / communication / USA / North America / America (continent) / black / San Francisco / California / technology / telegraph / phone / black and white / photo / illustration

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