Clarinet. Nominal pitch: A.

Technical description: Dark-stained boxwood with german silver ferrules and keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Straight speaker projecting about 2mm into bore. Tube in thumb-hole. Shaped thumb rest. Hinge key with salt spoon cup for F₃/C₅. Müller-type with spectacle instead of side B♮₃/F♯₅. 14keys, 2rings. L0: T; speaker. L1: T; throat A♮; throat A♭. L2: T; cross key for alternative F₄/C₆. L3: T; E♭₄/B♭₅. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅. R1: T; side F₄/C₆; side E♭₄/B♭₅; side trill key for throat A-B♮ and B♭-C. R2: T + spectacle. R3: T + spectacle (forked B♭₃/F♮₅); cross B♭₃/F♮₅. R4: F₃/C₅; G♯₃/E♭₅. Keymount type: pinned in pillars. Keyhead type: shallow cups.