Pigeon in flight from the front

Pigeon being released from a trench, May 1917.

Credit: Canada. Dept. of National Defence/Library and Archives Canada/
Restrictions on use: Nil
Copyright: Expired 
Copy negative PA-001454
Item no. O-1413
Box (21)
Other accession no. 1964-114 NPC
Photographer: Castle, W.I. (William Ivor)
MIKAN no. 3381019