Extremely Rare, Dukoff Fluted Chamber 3 Alto Sax Mouthpiece - Original, Excellent. Facing is original and unaltered. 074 inches (1.87 mm). Thorough cleaning and polishing is needed. Please write with any questions.This item is in the category "Musical Instruments & Gear\Vintage Musical Instruments\Vintage Wind & Woodwind\Parts & Accessories". The seller is "john8p4m" and is located in this country: US. This item can be shipped worldwide.