Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with silver plated german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Plate for R1 with correspondence to upper section. Vent below each of 5rings. R2 and/or R3ring closes vent above R2. F♯₅/G♯₅ trill. Brass tube in thumb-hole. Csharp mechanism. 15keys, 5rings, 4black rollers. L0: T, speaker. 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: Plate + correspondence; 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.