Austin Custom Brass Trumpet Standard 3CS
Trumpet Mouthpiece

Technical Data
- Manufactured by Austin Custom Brass
- Standard series
- Outer diameter: 27.08 mm (1.066")
- Inner diameter: 16.51 mm (0.65")
- Cup shape: Modified C cup
- Relative cup depth: 5.5
- Shape of the backbore: S
- Silver-plated
- Comparable to Monette B6sl, GR 65 M or Pickett 5D