Can anyone out there help me date this unusual spring ring clasp? In all my years of selling jewelry, I've never seen anything like it. As you can see, the little push knob is turned in a different direction from the usual spring ring and is much wider and flatter. The bracelet has other hallmarks of being a deco piece (it's carnelian or carnelian glass - still not sure), but with so many reproductions out there, it's hard to tell. I think the clasp is the key! Any help would be so much appreciated!
Thank you for your help! No markings at all unfortunately. I should have told you (and shown) that the bracelet's construction is completely bizarre - it's actually links attached to a chain very much like a herringbone (and the spring ring is attached to the chain). The chain tends to 'kink' like all the older Art Deco chains I've handled. It's one of the nicest bracelets I've ever had, but the construction is so strange (very sinuous and silky). Looks like it might be poured glass, possibly Gripoix. Thanks again!
