All Brass Mouthpiece model "Juan Cruz de Urquiza" for trumpet

Mouthpiece for trumpet author model. Weight 150 Grs 
Made in turned bronze, with a thick silver plating.
 
Only available in two internal sizes
JP (Jazz player - subtly smaller diameter than the 3C - very comfortable support - C-chamber with taper at the entrance of the grain) Ideal for jazz soloist or very versatile popular music. 
LP (Leader player - same diameter and support as the JP - small, flat chamber) Ideal for first trumpet and treble registers.