This is the oldest NY Bach mpc I've seen. The letters are small and the shape of it is similar to the very old Pardubas. Truly a collectors item. Due to dental work, a different rim is required. Trumpet mouthpiece all with very slight insertion markings.
All mouthpieces are in great shape with only shank wear marks from inserting into trumpet.
All throats that are bored out done at the factory. All sales final. I will pay shipping. Just not my size. Excellent condition with smooth slides and fast valves.