Tag #: M201424
| Length | Inner Rim Diameter | Throat Diameter | Cup Depth | Shank End Diameter |
| 3.895″ | 1.290″ | .327″ | 1.37″ | .533″ |
Comments:
“CONN – HELLEBERG″ text on side, somewhat rubbed out. This later type of Helleberg tuba mouthpiece was marked with the full “Conn – Helleberg” on the cup. Contrast this with the first style Helleberg, which only had an “H” on the cup.
V & E Simonetti Historic Tuba Collection 