Langley RCMP spokeswoman Cpl. Holly Marks says officers were helping some city officials clean out a homeless camp when they found the photo.
Police say the photo appears to be dated 1945, and they believe it was probably stolen during a break and enter.
It shows a group of smiling men in two rows and a young boy wearing a balaclava standing in the front, and on the back of the photo is a list of names.
Writing on the photo's top right corner indicates the group is the Recovery Section of the 10th C.I.B of the Royal Canadian Electrical Mechanical Engineers.
Mounties are asking anyone with information about the photo or its owner to call the police.
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