Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver ferrules and keywork. Four pieces: mouthpiece, barrel, one-piece body, bell.Original named ebonite mouthpiece marked for a ligature. Curved speaker with chimney on front of the instrument. Tube in thumb-hole. Oehler system with Pupeschi-style articulated C♯₄/G♯₅. Opened by L4key that is linked to L4 levers for E₃/B♮₄ and F♯₃/C♯₅and to F₃/C₅. Closed by R1. Csharp mechanism. Independent crossover throat A♭. 15keys, 6rings, 5ebonite rollers. L0: T; speaker corresponding with first ring. L1: T + ring + vent; throat A♮; throat A♭. L2: T + ring + vent. L3: T + ring; E♭₄/B♭₅. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅; alternative lever for G♯₃/E♭₅. R1: T + ring; side F₄/C₆; side E♭₄/B♭₅; side trill key for throat G♯-A or C₆-D₆; side trill for throat A-B♮ and B♭-C. R2: T + ring + vent. R3: T + ring (forked B♭₃/F♮₅); cross B♭₃/F♮₅. R4: G♯₃/E♭₅; F₃/C₅. Keymount type: screwed in pillars. Keyhead type: modern.