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Dean Harmonic Converter (b/w photo)

IMAGE number
LLM7180674
Image title
Dean Harmonic Converter (b/w photo)
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Artist
American Photographer, (20th century) / American
Location
Private Collection
Medium
black and white photograph
Date
C20th AD
Image description

Dean Harmonic Converter. 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) / machine / magnetism / black / telegraph / black and white / photo
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Asset - General information
Largest available format 4398 × 3155 px 2 MB
Dimension [pixels] Dimension in 300dpi [mm] File size [MB]
Large 4398 × 3155 px 372 × 267 mm 2.3 MB
Medium 1024 × 735 px 87 × 62 mm 864 KB

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