4 Free Photos of Manual Telephone Exchanges

cc-zerohistoryhistorical
RSB test desk flash jeh
2010 photos by jim.hendersonboxing
Field telephone switchboard - Fort Devens Museum - DSC07183
images with annotationsself-published work
Three BD-110A switchboards on left and one BD-96 on extreme right being operated by Private First Class James Grahn... - NARA - 531366
historicalhistory
Chesapeake and Potomac Telephone Company. View of row of operators. View of chairs showing type of chairs used by... - NARA - 522875
historicalhistory
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