Some of these I have measured, and others are from catalog descriptions & specifications.
| 94 | 95 | 96 | 97 | 98 | 99 | 100 | ||
| A | Bach 15E Giard 6M |
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| B | Giard 5M | Bach 8½B Giard 4M |
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| C | Bach 22 | Bach 17 | Bach 15C Bach 12C Schilke 45 Wick 12CS |
Bach 11C | Bach 7C Wick 10CS |
Bach 6¾C | Yamaha 48 | |
| D | Giard 6D | Bach 11 | Giard 5D | Conn 3 Wick 9BS |
Conn CL5 Wick 7CS |
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| E | Bach 12 | Bach 7 | Bach 9 | Bach 6½AL Giard 4D Schilke 50 Wick 6BS Wick 6BL |
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| inch | .940 | .950 | .960 | .970 | .980 | .985 | .990 | 1.000 |
| mm | 23.9 | 24.1 | 24.4 | 24.6 | 24.9 | 25.02 | 25.15 | 25.4 |
Do not take diameter or depth measurements too seriously. The measurements are done on curves, and are subject to varying interpretation. A lot of other factors influence how a mouthpiece feels and plays.
Compiled by Doug Elliott, 2000-2001