Alliance RM 'Richard Marshall' Cornet Mouthpiece.
Richard Marshall signature mouthpieces - road tested and used by Richard - Black Dyke.
RM1 - 17mm cup diameter, deep cup
RM1a - 17mm cup diameter, slightly shallower cup and modified backbore
RM 2 - 16.75mm cup diameter, deep cup
RM2a - 16.75mm cup diameter, slightly shallower cup and modified backbore
RM 3 - 16.50 mm cup diameter, deep cup
RM 3a - 16.50mm cup diameter, slightly shallower cup and modified backbore
Gold plate rim and cup available via special order!