Clarinet. Nominal pitch: B♭.

Technical description: Ebonite with nickel plated german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, and bell. Original named ebonite mouthpiece marked for ligature. Curved speaker with chimney on front of the instrument. Articulated G/A trill, opened with R1 and closed by L0 and throat A♭ key. Brille on upper section with vent just below L1. All tone-holes under rings lined with german silver. Articulated C♯₄/G♯₅ opened by any L4 lever, closed by any RH plate or ring. Ring on R1plate closes vent just below F₃/C₅ touchpiece in order to give an in-tune B₃/F♯₅. Additional L4 lever for F₃/C₅. Csharp mechanism. 15keys, 6rings, 1plate, 4ebonite rollers. L0: T + ring; speaker. L1: T + ring; throat A♮ ; throat A♭. L2: T + ring. L3: T; cross E♭₄/B♭₅. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅; additional lever for F₃/C₅. R1: T + plate + ring; side F₄/C₆; side E♭₄/B♭₅; side trills 1-2. R2: T + spectacle. R3: T + spectacle (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.