This 1932 overprinted 6c on 5c brown olive Scott #C3 [C1 Surcharged] Air Mail Issue stamp from Don's Classic Stamps is in Fine-Very Fine (F-VF) Mint Never Hinged (MNH) condition. The Unitrade Specialized Catalogue of Canadian Stamps, which follows the Scott numbering system format in its listings, shows a Catalogue value of $15.75 (in Canadian currency) for this stamp. (Item #11,152)
In the Don's Classic Stamps Ebay Store you will find an ever increasing selection of Canada Stamps and Covers. Therefore, shop often to have the best choice.