Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Alternative L4 F₄/C₆key. Break throat Bmechanism as inAlbert's 1864 patent. End-pivoted F₃/C₅ key. Short, continental throat Akey indicates that the instrument is not made for the British market. 14keys. L0: T; speaker + correspondence. L1: T; throat A♮; throat A♭. L2: T. L3: T. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅; alternative side F₄/C₆. R1: T; side F₄/C₆; side E♭₄/B♭₅; side trill key for throat A-B♮ and B♭-C. R2: T. R3: T; cross B♭₃/F♮₅; side B♮₃/F♯₅. R4: F₃/C₅; G♯₃/E♭₅. Keymount type: screwed in pillars, Keyhead type: modern