Technical description: Blackwood with silver plated german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Zig-zag speaker with chimney on left side of the instrument. German silver tube in thumb-hole. Alternative touchpiece for C♯₄/G♯₅. Tenon-socket joint between sections lined with german silver. Disconnectable C sharp mechanism. E₃/F₃ vent. Full Oehler system. 18 keys, 5 rings, 1 plate, 4 black rollers.
L0: T; speaker corresponding with first ring.
L1: T + ring + vent; throat A♮; throat A♭.
L2: T + ring + vent; 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 B♭₃/F₅; alternative lever for G♯₃/E♭₅.
R0: 'E₃/F₃ correction vent.
R1: T + ring + vent; 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; alternative touchpiece for C♯₄/G♯₅.
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.
With possibly original case with clarinet in B♭ (5176). Also in case: two mouthpieces, one by "AUGUST SEIDEL / HAMBURG" (wood) and one unstamped (ebonite). Case has Oehler barrels for B♭ and A clarinet and in addition two barrels marked A1 and A2. Screwdriver and devices for cork grease.
Repair History: The mouthpiece is a replacement.
A matched pair with (5176).
h. fricke, oct-dec 2006.
Ulf Meyer; reportedly from the Berlin Philharmonic Orchestra principal who preceded Buerkner.; Bequest of Sir Nicholas Shackleton, 2006.