This is a vintage Polish National Alliance sterling vermeil bow brooch. The brooch is marked STERLING. There is an enamel shield in the center of the bow. The shield is marked 1880 PNA. The brooch measures 1-1/2 inches by 1/2 of an inch. The brooch is in very good condition with minimal, if any, loss of gold tone. It may need cleaning or polishing. Please let me know if you have any questions or would like to make a reasonable offer. Thanks for stopping by.