Technical description: Blackwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Black ebonite mouthpiece, grooved for cord an marked "C" probably original. Short barrel with a german silver tuning slide. Curved speaker with chimney on front of the instrument. Rings for L1 and L2 with vent just above L1. Alternative R1 touch for C♯₄/G♯₅. Alternative adjustable L4 lever for G♯₃/E♭₅. Patent C sharp mechanism. 14 keys, 4 rings, 4 german silver rollers.
L0: T; speaker.
L1: T + ring + vent; throat A♮; throat A♭.
L2: T + ring.
L3: T; 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.
Playing accessories: One ligature.
(4817), (5492) and (5493) have a triple wooden case with green felt, made for these instruments.
Usable pitch: about 450 Hz.
(4817) in C, (5492) in B♭ and (5493) in A are a matched set of clarinets.
h. fricke, oct-dec 2006.
567 with mouthpiece.
Tony Bingham, London; from U.S.A.; Bequest of Sir Nicholas Shackleton, 2006.