Antique 925 sterling silver badge pin w medieval Coat of Arms, collectible

Antique collectible pin badge. Medieval style Coat of Arms. Made about 100 years ago, in the 1920th. In excellent condition. Solid sterling silver. Not stamped (as many silver pieces were not stamped back then), but this is a well known collectible antique item that is usually sold at auctions. 3.4 cm in diameter. Unisex.