Curious about a mouthpiece made for Vincent Clarke, famous New York trombonist in the NBC Symphony.. I know that V. Bach made a Clarke model that later turned into the 6 1/2A variants.. I am especially interested in knowing the differences between the Conn and Bach versions as i know that the Conn pieces from that period had tighter throats/backbores than the Bach.. This topic are related to the search for a suitable match for a 1921 Conn 78H mentioned on another thread i started here.. Sorry for the confusion..

Trond