Dating jewellery clasps
However, it's still used occasionally (these days usually on inexpensive jewelry).
Evaluating it in concert with the hinge and pinstem is essential.
To open the clasp, hold each side of the clasp with opposite hands.
They (and earrings) are the most frequent victims of Finding-Tinkering.
Begin at home, assuming your collection encompasses various periods and both fine and costume jewels.
To branch out, take your magnifying equipment and visit a local shop or two.
Being a jewellery geek and nerd that likes the unusual and different mixed with history has its advantages. Also this type of clasp is still sold today and may be used by some jewellery makers.
A circular clasp that opens with a small lever was used from the thirties to the late eighties and into the nineties.
So you will need to date the whole necklace or bracelet generally.