Telephone Exchange Canadian Signal Company August 1917 (back view)
From RCSigs.ca
Description
Telephone Exchange (back view) manufactured by a Member of the Canadian Contingent Signal Company. August, 1917.
Credit: Canada. Dept. of National Defence/Library and Archives Canada/ Restrictions on use: Nil Copyright: Expired Copy negative PA-001751 Item no. (creator) O-1851 Box (24) Other accession no. 1964-114 NPC MIKAN no. 3380996
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