Antoine Courtois AC421BHA Bb/F Tenor Trombone
Antoine Courtois AC421BHA Bb/F Tenor Trombone, Bb/F Tenor Trombone, 'New York’ Model, Cylindrical bore: 13.89 mm, Hand-hammered, one-piece brass bell with 215 mm diameter, Brass outer slide, Hard chrome-plated nickel silver inner slide, With brass bow, Quart valve open wrap, Hagmann valve system with progressive bore, Ergonomic, removable hand rest, Unscrewable bell, Clear lacquered, Includes Marcus Bonna case