I have a vintage AYA double barrel 12 ga. It closely resembles their Matador model. I know AYA is very popular in England where they take their shotguns seriouse. Mine is so early that it doesn't have a model name nor number any where on it. I'm wondering if that would make it a desired collectors piece and wondering the value. I know I saw an identicle one in a gun digest in 1974 for $2,300. Anyone know anything about AYA?