For your consideration is this nice modernistic abstract pin. It is marked Pineda TP-17 Mexico 925 Taxco. I believe this was made by a brother of Antonio Pineda by my research. The TP designates that it is post 1970s. This interesting piece was cleaned at one point and you can see evidence of the old patina on the back.
It measures 1 and 7/8 inches by 1 and 3/16 inches across the widest points.
Excellent fully functioning vintage condition.