Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Unstamped cocus wood mouthpiece marked for a ligature. The instrument has extension slides in barrel, between upper and lower sections, and above lowest tone-hole, to convert high to low pitch. Connections between sockets and tenons lined with german silver. Upper section with a spectacle operating a vent just above L1. Csharp mechanism. Mechanism of bascule key is able to be extended. 13keys, 4rings, 4red rollers. L0: T; 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. R1: T; side F₄/C₆; side E♭₄/B♭₅; side trill key for throat A-B♮ and B♭-C. 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.