Books behind barbed wire
Canadians could send books to their loved ones in enemy prison camps, but only through companies that had a postal censorship permit to handle such shipments.
"Firms issued a postal censorship permit to forward books, etc, to British prisoners-of-war in enemy & enemy-occupied territory," n.d. [1943?]
War, Memory and Popular Culture Archives - The University of Western Ontario - London, Ontario
mimeographed pages, 20.4cm x 25.3cm