Mercer & Barker Euphonium Mouthpiece Silver Plate

This model is finished in a simple Bright Silver Plate polished to a mirror finish. Cup  Rim Throat GW3 26.4 mm 6.5 mm 7.48 mm GW4 26 mm 6.7 mm 7.38 mm GW5 25.7 mm 6.85 mm 7.28 mm MB3-ET 26.4 mm 6.5 mm 7.48 mm Round Rim MB4-ET 26 mm 6.7 mm 7.38 mm Round Rim MB4-ET Power MB5-ET 25.7 mm 6.85 mm 7.28 mm Round Rim MB51 25.5 mm 6.95 mm 7.2 mm Deep Cup MB51-M 25.5 mm 6.95 mm 7.2 mm Deep Cup Medium Shank Solo 51 25.5 mm 6.95 mm 7.2 mm Medium Cup Solo 51-M 25.5 mm 6.95 mm 7.2 mm Medium Shank