Genuine Conn Helleberg 24K Gold Rim & Cup Tuba/Sousaphone Mouthpiece, S NEW! | eBay
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C.G. Conn Helleberg Series Tuba Mouthpiece - 7B | Sweetwater
C.G. Conn Helleberg Series Tuba Mouthpiece - 120, Gold-plated | Sweetwater
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Schilke SH "Helleberg" Tuba Mouthpiece – The Tuba Exchange
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Conn HELLEBERG 7B Tuba Mouthpiece in Silver | Reverb Italia
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C.G. Conn Helleberg Series Tuba Mouthpiece - 7B | Sweetwater
