Technical description: Blackwood with german silver plated ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Very small speaker cup; german silver tube in thumb-hole. Alternative R1 touchpiece for C♯₄/G♯₅. E₃/F₃ correction for R0. Patent C sharp mechanism. Nearly full Oehler system. No speaker correspondence with first ring. No alternative cross key for F₄/C₆. No plate for R2. Uebel patent RH vents (patented in 1941). 17 keys, 6 rings, 4 rollers.
L0: T; speaker.
L1: T + ring + vent; 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 B♭₃/F₅; alternative lever for G♯₃/E♭₅.
R0: E₃/F₃ 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.
R2: T + ring + (patent) vents.
R3: T + ring (forked B♭₃/F♮₅); cross B♭₃/F♮₅.
R4: G♯₃/E♭₅; F₃/C₅.
Keymount type: screwed into pillars.
Keyhead type: modern.
Repair History: The mouthpiece is a replacement.