- Model: 1 M, 3,104 - Cup diameter: 16.95 mm - Bore: 3.74 mm - Medium deep cup - Rim: Standard - Narrow back bore: #104 - Comparable to Bach 1 1/2C, Yamaha 16C4, Schilke 14 - Surface: Silver-plated THIS ITEM IS CURRENTLY NOT AVAILABLE YOU CAN CONFIRM THIS INFORMATION BY CLICKING ON ITEM