Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with silver plated german silver ferrules and keywork. Five pieces: Ebonite mouthpiece, barrel, upper section, lower section, bell. Mouthpiece grooved for cord. Speaker key/throat Acorrespondence to improve the intonation of throat B♭ and A. Disconnectable patent Csharp mechanism. Independent RH rings with only one side vent. 16keys, 5rings. L0: T; speaker corresponding with first ring and vent. L1: T + ring + vent; throat A♮; throat A♭. L2: T + ring + vent; alternative cross key for F₄/C₆. 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; side F₄/C₆; side E♭₄/B♭₅; side trill key for throat G*Sharp-A or C₆-D₆; side trill for throat A-B♮ and B♭-C; alternative touchpiece for C♯₄/G♯₅. 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