This is a wonderful 1940s-50s Mid Century Modern era Scotty dog brooch with large marcasite and black rhinestone accent stones. The brooch is made from a pressed wood composite material, which makes me suspect that it was made during or shortly after WW2, when metal was in short supply. The back of the brooch has a typical vintage pin back with simple C hook clasp.
This brooch measures 2" x 2.125".
Condition is good.
What a great vintage brooch for a dog lover.