Used Bach 7E Trumpet Mouthpiece w/ 30 Throat, 76 Backbore (1970s)
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Used Bach 7E trumpet mouthpiece with 30 throat and 76 backbore (1970s vintage) in very good condition. Shank is stamped "30" and "76". Rim is excellent, with minimal wear, shank has insertion wear but no plating loss. The shank wall is noticeably heavier than standard 7E models.
UTP-878
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