Found these in zip lock bag of silverware bought at flea market. Cleaned one up and....WOW! I think it's silver! Even though they are all similar in design, they are all stamped differently: PITKIN........SC & CO (this is cleaned one)..........NE CRITTENDEN.......HS BRADLEY (this one also has what appears to be a head). Think they are silver? Time period? Valuable? For time period or silver content? Can I ask that? Should I take them to someone, like an appraiser? I've had them for a few years, and decided it's time to know. DUH, THANKS FOR SUGGESTING PICS OF NAMES!!!!!