Technical description: Ebonite and wood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Very close to Pupeschi's British patent 12,108. The R1 ring system is designed so that a G♯₃/E♭₅ is available with R4 free for the F₃/C₅ key (avoiding slides). The `Pupeschi' C♯₄/G♯₅ is linked to both bascule levers and the additional L4 lever for F₃/C₅. Additional R1 side trill. 14 keys, 6 rings, 1 covered tone-hole.
L0: T + ring; speaker.
L1: T + ring + vent; throat A♮; throat A♭.
L2: T + ring + vent.
L3: T; E♭₄/B♭₅.
L4: E₃/B♮₄; F♯₃/C♯₅; alternative lever for F₃/C₅.
R1: Plate + ring + vent articulated alternative G♯₃/E♭₅; 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.
R3: T + ring (forked B♭₃/F♮₅); cross B♭₃/F♮₅.
R4: F₃/C₅; G♯₃/E♭₅.
Keyhead type: modern.
Keymount type: screwed in pillars.
Barrel and bell and mouthpiece not original, but consistent.
Previous ownership: Tony Bingham, London.
h. fricke, oct-dec 2006.
635 with mouthpiece.
Tony Bingham, London.; Bequest of Sir Nicholas Shackleton, 2006.