Bass clarinet. Nominal pitch: B♭.

Technical description: Stained wood with brass ferrules and bell; crook seems to be nickel-plated. Four pieces: mouthpiece, crook, section and bell. Body in one piece, made like a bassoon, but with "upper section" permanently fixed (one key-rod crosses the joint). 10 keys plus 2 spectacles and finger-plate, saltspoon, plated brass, in pillars. Sling-ring and small thumbrest. Bell angled forward, formed from sheet brass. L0: Speaker (liner projects to centre of bore); thumb-hole. L1: throatA♮; straight A♭; finger-hole with spectacle ring and F₃/C♮₅ vent. L2: Finger-hole with spectacle ring for forked F₃/C♮₅. L3: Cross E♭₃/B♭₄; finger-key for C₃/G♮₄. L4: Straight C♯₃/G♯₄; double cross-key to opposite "barrel" for F₂/B♮₃; similar single cross-key for F♯₂/C♯₄. R1: F₃/C♮₅ (to extension-section); finger-hole with spectacle ring for F♮. R2: Finger-hole with spectacle ring for B♮+2/F♯₄ (as Boehm). R3: Finger-hole. R4: Closed rod-and-axle G♯₂/E♭₄; open rod-and-axle F₂/C♮₄. Keymount type: pillars. Keyhead type: saltspoon.Technical description: Ebonite, with german silver ferrules. Five pieces: mouthpiece, crook, upper section, lower section, bell. Ebonite mouthpiece, metal ligature and cap; german silver bell and crook. Mouthpiece not stamped. Crook bassoon-shaped, with head of speaker, also clip for music lyre. Upper section not stamped, separate speaker and B♭ keys. Lower section has shaped thumbrest and integral sling-ring. Bell upturned, with head of B♮ bascule (under guard). 12 keys plus 7 plates (one perforated), modern type, in pillars. Music card holder on crook indicates that the instrument was equipped for military or marching band use. L0: throat B♭; speaker (head on crook); hinged thumb-plate. L1: throatA♮; straight A♭; key for E₃/B♮₄ instead of T. L2: Finger-plate perforated with 10mm tone-hole. L3: Cross E♭₃/B♭₄; key for C₃/G♮₄ instead of T. L4: C♯₃/G♯₄; E₂/B♮₃ bascule; F♯₂/C♯₄ (no patent Csharp). R1: Finger-plate for B♭₂/F♮₄, also closing B♮₂/F♯₄ hole; side F₃/C₅; side throat trill key. R2: Finger-plate, also closing B♮₂/F♯₄ hole (as on Boehm). R3: Finger-plate giving G₂/D♮₄. R4: G♯₂/E♭₄; rod-and-axle F₂/C♮₄. Keymount type: pillars. Keyhead type: modern. Repair History: Top 55mm of lower section has been replaced with ebonite which is now a lighter colour than the rest of the instrument. The bore here is now rather rough.