Technical description: Cocus wood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Unstamped cocus wood mouthpiece marked for a ligature. Zig-zag speaker with a small ivory chimney on left side of the instrument. Spectacle on upper section with vent between L2 and L3. Additional L4 lever for G♯3/E♭₅. Alternative touchpiece for C♯₄/G♯₅. Spectacles on lower section with vent between R1 and R2. 14 keys, 4 rings, 2 german silver rollers.
L0: T; speaker.
L1: T; throat A♮; throat A♭.
L2: T + ring + vent.
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 with push pins.
Keyhead type: modern.
h. fricke, oct-dec 2006.
578, 650 with mouthpiece.
ex- Thomas Kiefer collection, Gelsenkirchen.; Bequest of Sir Nicholas Shackleton, 2006.