Vintage Artisan Crafted Silver-Tone Dog Brooch.
About 3” tall by x 2 3/4” wide with tail.
This is probably tin. It has been cut out and shaped into a 3D pin. It has lots of etching or engraving and a very sweet face. She has claws and a collar with a tag. So detailed!

The pin in the back works well and is firmly soldered into place. 

Not Silver. Sold as is. Pre- Owned.