Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece (red rubber), barrel, upper section, lower section, bell. Oehler system with alternative B♭₃/F₅ touchpiece for L4 and right thumb key vent for F₃/E₃. Alternative R1 touchpiece for C♯₄/G♯₅. Patent Csharp link can be on or off. 18keys, 5rings, 1plate, 4 rollers. L0: T; speaker corresponding with first ring. 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 B♭₃/F₅; alternative lever for G♯₃/E♭₅. R0: F₃/E₃ intonation vent. R1: T + ring + vent; 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; alternative touchpiece for C♯₄/G♯₅. R2: Plate. R3: T + ring (forked B♭₃/F♮₅); cross B♭₃/F♮₅. R4: G♯₃/E♭₅; F₃/C₅. Keymount type: pillars. Keyhead type: modern.