All Brass "Standard" model trumpet mouthpiece

Mouthpiece for trumpet standard model. Weight 115 Grs 
Made of turned bronze with a thick silver plating.
 
It is a high quality handmade product that is individually checked to fit precisely to the following measurements:
1D
1 and 1/4C
1 and 1/4D
1 and 1/2C 
2A
2B
2F
3C 
3D
5C
7D
8A
12A
15AW