Dog Spaniel Cocker Taxco Cony Victoria Mexico sterling silver vintage pin brooch

Vintage dog head brooch. Spaniel - could be Cocker, Springer, King Charles or ??? Looks a bit like Lady from Lady and the Tramp. I did not polish it, as some people like the vintage patina, but I'm sure it would polish nicely. Stick part of the pin is very thin and not straight. Closing clasp is a bit stiff and hard to move. There is an eagle mark and a 12 inside it. Eagle Marks (1948-1980) One of the most important indicators of the age and authenticity of Taxco jewelry is the eagle mark. Introduced in 1948 by the Mexican government, the eagle mark guaranteed quality and authenticity for silver jewelry produced in Taxco. Each mark features a number corresponding to a specific silversmith or workshop, providing valuable insight into the piece’s origin.