Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Original named black ebonite mouthpiece grooved for cord. Long tailed throat A♭ for the British customers. LH rings operating 2 vents to improve the tuning of throat and forked notes. All sockets lined with german silver. 15 keys, 5 rings, 4 german silver rollers.
L0: T; speaker.
L1: T + ring + vent; throat A♮.
L2: T + ring + vent; ; throat A♭; alternative cross key for F₄/C₆.
L3: T + ring; E♭₄/B♭₅.
L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅; alternative lever for G♯₃/E♭₅.
R1: T; side F₄/C₆; side E♭₄/B♭₅; side trill for throat A-B♮ and B♭-C; alternative touchpiece for C♯₄/G♯₅.
R2: T + ring + 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.
H. Fricke, Oct-Dec 2006.
Tony Bingham, London.; Bequest of Sir Nicholas Shackleton, 2006.