Austin Custom Brass Trumpet Standard 1.25CDS Gold
Austin Custom Brass Trumpet Standard 1.25CDS Gold, Trumpet Mouthpiece, Standard series, Outer diameter: 27.13 mm (1.068""), Inner diameter: 17.04 mm (0.671""), Cup shape: Medium Shallow Bowl, Relative cup depth: 5, Shape of the backbore: S, Gold-plated, Comparable to Monette B2LD