Canadian Corps Switchboard May 1918 (back view)

Switch Board (back view) made by Canadian Corps Signals. May, 1918.

Credit: Canada. Dept. of National Defence/Library and Archives Canada/
Restrictions on use: Nil
Copyright: Expired 
Copy negative PA-002660
Item no. (creator) O-2664
Box (29)
Other accession no. 1964-114 NPC
MIKAN no. 3381013