They have an extensive library of jewelry marks located here: Researching Costume Jewelry.
Just scroll down a little and click the letter of the alphabet for the company marks you wish to view.
Maybe you’ve just acquired some vintage jewelry from a family member or friend.
Or you found some nice vintage jewelry at a yard or garage sale or at the thrift shop.
To share this article, use the share buttons below.
Whether you plan to keep the jewelry as a family heirloom or would like to resell it, a knowledge of vintage jewelry marks will help you to identify and date it properly.
I often get requests from people asking for help with vintage jewelry they’ve acquired.
As a general rule, signatures without a copyright symbol indicate the piece was manufactured prior to 1955. Jewelry companies would often use up their supply of pre-stamped clasps and findings after switching to a new signature, so some pieces made soon after 1955 might not have copyright symbols.
A detailed study of vintage jewelry marks could fill multiple books, but to give some guidance we can use the Trifari company as an example.