Clarinet. Nominal pitch: B♭.

Technical description: Blackwood with german silver cast keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. The aim of the Pupeschi system is to relieve a legato between E?/B?? and C??/G??. The usual cross key touchpiece for C??/G?? on L4 is here on the bascule key. Based on simple system with patent Csharp and alternative B? (F? ?) for R2; novel Ctouch with patent Csharp as centre of key; no G? touchpiece; articulated mechanism activated by B and C? touchpieces; alternative E? by right hand fork on R2 and R3; F?/G? trill with R3; A?/B? and A/B throat trills on interlinked mechanism; R1 has ring over plate; R3 has split ring. L0: T; speaker at rear. L1: T; A?; A? also closing upper head of the throat trill key. L2: T. L3: T; E??/B??. L4: E?/B??; F??/C?? (both articulated to G?, Pupeschi action). R1: Divided plate closing tone-hole, art C??/G?? and vent opposite E?; B??/F??. R2: spectacle ring. R3: divided spectacle ring, half closes art C??/G??, half normal spectacle. R4: G??/E??; divided touchpiece, inner for F??/C??, outer for F?/C??. Keymount type: pillars. Keyhead type: modern.Technical description: Blackwood with german silver cast keywork. Five pieces: mouthpiece, barrel, upper section, lower section, bell. The aim of the Pupeschi system is to relieve a legato between E₃/B♮₄ and C♯₄/G♯₅. The usual cross key touchpiece for C♯₄/G♯₅ on L4 is here on the bascule key. Based on simple system with patent Csharp and alternative B♭ (F♮ ?) for R2; novel Ctouch with patent Csharp as centre of key; no G♯ touchpiece; articulated mechanism activated by B and C♯ touchpieces; alternative E♭ by right hand fork on R2 and R3; F♯/G♯ trill with R3; A♭/B♭ and A/B throat trills on interlinked mechanism; R1 has ring over plate; R3 has split ring. L0: T; speaker at rear. L1: T; A♮; A♭ also closing upper head of the throat trill key. L2: T. L3: T; E♭₄/B♭₅. L4: E₃/B♮₄; F♯₃/C♯₅ (both articulated to G♯, Pupeschi action). R1: Divided plate closing tone-hole, art C♯₄/G♯₅ and vent opposite E♭; B♭₃/F♮₅. R2: spectacle ring. R3: divided spectacle ring, half closes art C♯₄/G♯₅, half normal spectacle. R4: G♯₃/E♭₅; divided touchpiece, inner for F♯₃/C♯₅, outer for F₃/C♮₅. Keymount type: pillars. Keyhead type: modern.