YAMAHA Mark Gould Model (Rim: MOST 1) Trumpet Mouthpiece

This is a modified rim from a Yamaha Mark Gould model, adjusted to the inner diameter of a Schilke MOST 1 (commissioned to a renowned domestic mouthpiece workshop).
Because the Schilke MOST 1 originally has a larger outer diameter than the Gould model, the rim width is slightly thinner than the original copy.

Compared to the highly resistant MOST 1, the Gould model offers smoother air intake, making it a good match for Yamaha trumpets.
The playing feel is imagined to be between a Yamaha 17B4 and a Hooten model.

There are signs of use, but no damage that affects playing.