Detail 01
.643 inch cup diameter
Small side of Schilke's cornet range, which runs past .673. Less lip inside the cup, so endurance comes easier.

Independent shopping perspective
Gold-plated cornet mouthpiece, .643-inch B cup with a 26 throat. For cornet players who want a compact rim and a rounder, conical tone.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Small side of Schilke's cornet range, which runs past .673. Less lip inside the cup, so endurance comes easier.
Detail 02
Medium-small depth. Sits between the shallow A cups built for range and the deep E funnels built for tone.
Detail 03
Conical taper instead of a bowl. Pushes the sound toward the darker cornet voice rather than trumpet brightness.
Detail 04
Schilke's tighter standard bore. More resistance to push against than the 27 throats on the A-cup models.
Detail 05
Semi-flat contour spreads pressure across more lip. Trades some flexibility for a cushion that holds up on long sets.
Detail 06
Slicker against the lip than silver, and an option if silver leaves you red or itchy.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
No. It has a cornet shank, which is shorter and narrower than a trumpet receiver takes. Buy a trumpet-shank model for a trumpet.
The 10A4a is a shallow A cup with a tight a-backbore built for upper register work. The 10B4 has a deeper funnel B cup aimed at tone.
Plating is a thin surface layer. Cup shape, rim and throat set the sound. What you notice with gold is feel — smoother and less grippy than silver.
It plays cleanly, but the 13 is the model Schilke points students toward, with a rounder rim for quicker response and more flexibility.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.