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Description
Two tubes on display in ceramic bases with label: "Audion detector from de Forest Wireless Telegraph Company, Con. 61, Key West, Florida, 9-14-06 1882"
Type
image
Format
Black & White
Identifier
0D355F14-3FA6-42DA-9BCE-416964994050 2003-59-283
Subject
De Forest Wireless Telegraph Company Wireless communication systems (LCSH) Audion Telegraph, Wireless (LCSH) United States. Navy--Electronic installations (LCSH)
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