I'd like some advice. I have found an empty webley pellet tin. It's the green. 177 square type from around the 1940s I would guess. The strange difference is that there is a red sticker on the tin from webley saying.. 22 and 500. Seems these tins may have been used for. 22 at some point maybe where there was a short supply of the proper red tins. Has anyone any advice?