Otto Link "Double Ring" era Super Tone Master BARITONEHere is an original condition 1950's, possibly 60's Otto Link "Double Ring" era baritone mouthpiece with serial. This piece is stamped 5* with F62 on the opposite side and measures . 100" on my gauge. We are all probably more familiar with the tenor and alto versions of this legendary mouthpiece but the baritone design is equally revolutionary in the world of metal mouthpiece design. Before the "Super" Tone Master (STM), chambers tended to be very