Technical description: Blackwood with silver plated german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Zig-zag speaker with small chimney on the left side of the instrument. German silver tube in thumb-hole. All tone-holes under rings lined with ebonite. Alternative R1 touchpiece for C♯₄/G♯₅. Patent C sharp mechanism. 16 keys, 5 rings, 1 plate, 4 ebonite 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 G♯₃/E♭₅.
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.
Some springs fatigued. Mouthpiece missing.