Clarinet. Nominal pitch: B♭.

Technical description: Cocus wood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Unstamped cocus wood mouthpiece marked for a ligature. Zig-zag speaker with a small ivory chimney on left side of the instrument. Spectacle on upper section with vent between L2 and L3. Additional L4 lever for G♯3/E♭₅. Alternative touchpiece for C♯₄/G♯₅. Spectacles on lower section with vent between R1 and R2. 14keys, 4rings, 2german silver rollers. L0: T; speaker. L1: T; 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; side F₄/C₆; side E♭₄/B♭₅; 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 with push pins. Keyhead type: modern.