Victor Pereyra created this interesting Beetle pin / brooch using pure silver, which allowed Victor to give the beetle great detailing since pure silver is softer than sterling silver.
As you know, pure silver is .999 and sterling is .925. As a result, this piece made of pure silver will not tarnish as easily as sterling since sterling has a copper alloy in it which causes it to tarnish over time.
The clasp that is attached to the pin is marked "925" which gives the piece a secure pin and clamp. Therefore, the "925" stamp is not indicative of the silver content of the pin itself, but rather the clasp that is attached to each pin.
16 grams pure silver
2 ? inches long by 1 ¾ inches wide