Marcinkiewicz E12.4 Roger Ingram Mouthpiece
Marcinkiewicz E12.4 Roger Ingram Mouthpiece, Trumpet Mouthpiece, Roger Ingram signature model, Outside diameter: 26.85 mm, Inner diameter :16.54 mm, Cup depth: 9.47 mm, Bore 3.56 mm, Overall length 87.63 mm, Edge contour: Medium round, Silver, Similar to the Giardinelli Bobby Shew