This 1949-1950 Lower Right Corner Block of 4, Plate 1, $1.00 Scott #O10 "Train Ferry" 1950-1951 overprinted "OHMS" in black Official Peace Issue Stamps from Don's Classic Stamps is in Very Fine (VF) Mint Never Hinged (MNH) condition, with a small gum "bubble" mid-right margin . The Unitrade Specialized Catalogue of Canadian Stamps, which follows the Scott numbering system format in its listings, shows a Catalogue value of approx $700.00 (in Canadian currency) for this block.  (Item #7277)