Conn H tuba mouthpiece, c. 1910
Length Inner Rim Diameter Throat Diameter Cup Depth Shank End Diameter
3.650″ 1.295″ .338″ 1.43″ .536″
Comments:
“H″ text on side. This first type of Helleberg tuba mouthpiece was only marked with an “H” on the cup. Contrast this with the full “Helleberg” marking of the 1930’s Helleberg.

Conn-Helleberg tuba mouthpiece, c. 1930…. used by Arnold Jacobs on his York…different sizes do exist of this piece….
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.
[url=https://flic.kr/p/2soCTen]

Conn-Chief tuba mouthpiece, c. 1920…as used by the great John Kuhn
Length Inner Rim Diameter Throat Diameter Cup Depth Shank End Diameter
3.830″ 1.335″ .352″ 1.71″ .522″
Comments:
“CHIEF” text on one side.
[url=https://flic.kr/p/2soBu9p]

King 26 tuba mouthpiece, c. 1935…used by Bill Bell on his King
Length Inner Rim Diameter Throat Diameter Cup Depth Shank End Diameter
4.035″ 1.285″ .344″ 1.45″ .526″
Comments:
“KING / 26″ text on side.
[url=https://flic.kr/p/2soBKT1]

Dr Young tuba mouthpiece…designed by Dr Fred Young…basically a straight funnel…
Length Inner Rim Diameter Throat Diameter Cup Depth Shank End Diameter
4.84″ 1.375″ .346″ 2.37″ .534″
Comments:
REYNOLDS / DR. YOUNG / MODEL text on side.
This mouthpiece was produced by the Reynolds corporation in the 1960’s in conjunction with Dr. Frederick Young. It is an unusual mouthpiece, in that it resembles a french horn mouthpiece that has been scaled up to fit a tuba.
[url=https://flic.kr/p/2soBu8h]
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