OCB stood for “Off Center Bore”. These models were popular with jazz and
classical clarinetists during the 1950s through the 1980s. O’Brien is said
to have put really good facings on his mouthpieces. In general it’s thought that O’Brien has been underrated as an artists just because of his status as a manufacturer and retailer.

Tony Scott played a crystal
mouthpiece during his jazz recordings years in the 1950s and 1960s. The
OB* was described as a “medium” and his most popular facing.

This Model is from the 1980s. 

Shipping Weight 1.0000kg
Shipping Width 0.200m
Shipping Height 0.200m
Shipping Length 0.200m
Shipping Cubic 0.008000000m3

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