CANADA OFFICIAL STAMPS 1949-50 overprinted “O.H.M.S.”, with 1949 set mint (some incl. 50c are never hinged), 7c Air plate block of four (stamps never hinged),  the set less $1 used, 1949-50 sets mint and used, Special Delivery 10c mint and used, plus upper and lower right corner plate blocks of four  mint or never  hinged. (48 stamps)

Send Enquiry for CANADA OFFICIAL STAMPS 1949-50 overprinted “O.H.M.S.”, with 1949 set mint (some incl. 50c are never hinged), 7c Air plate block of four (stamps never hinged),  the set less $1 used, 1949-50 sets mint and used, Special Delivery 10c mint and used, plus upper and lower right corner plate blocks of four  mint or never  hinged. (48 stamps)