I just had a friend give me an A.z.c. Revolver. It looks remarkably like a Colt single action police positive. It also appears to be a .38 - but since it's Spanish it could be some weird European caliber. Has anyone ever heard of these guns? I'm trying to figure out value but I can't find it anywhere... I've also heard they are very unsafe to shoot. If anyone has any information or can point me to a data source I sure would appreciate it.