Canada, George VI: Varieties of Postage Stamps

A. Constant varieties

1 April 1937: George VI
3 c., scarlet
I Canada 1937 George VI postage stamp flaw crease on collar Crease on collar.
1 March 1939: special delivery stamp
10 c. on 20 c., carmine
I Canada 1939 special delivery stamp short canceling bar Middle canceling bar on the right shorter.