Clarinet. Nominal pitch: B♭.

Technical description: Cocus wood with german silver ferrules and keywork. Four pieces: mouthpiece, barrel, one-piece body, bell. Tuning slide between barrel and body, german silver lined tenon. Straight speaker with a chimney on the back of the instrument. Ebonite lined tone-holes. Barret action. Articulated C♯₄/G♯₅. Covered finger holes for R1 and R2, Spencer's model. Integral wooden bell rim. 13keys, 3rings, 2covered tone-holes, 4ebonite rollers. L0: T; speaker. L1: T; throat A♮. L2: T + ring; throat A♭. L3: T + ring; cross E♭₄/B♭₅. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅. R1: plate; Barret action (side F₄/C₆; E♭₄/B♭₅); side trills 1-2. R2: plate + 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.