Vintage craft brooch

Antique handmade copper brooch with an oval emerald stone (imitation) and the image of a coin engraved with HECTOR in the armor of a Roman warrior. Brooch presumably the beginning of the last century, it is made by a jeweler-artisan in a single copy of a thick copper plate with a clasp bracket, which is in excellent working condition, as well as the brooch itself, covered with a noble patina.