Canadian Signals Section trying connection

Canadian Signal Section trying to get a connection. Battle of Passchendaele. November, 1917.

Credit: Canada. Dept. of National Defence/Library and Archives Canada/
Restrictions on use: Nil
Copyright: Expired 
Copy negative PA-002163
Item no. (creator) O-2247
Box (26)
Other accession no. 1964-114 NPC
MIKAN no. 3381020