DescriptionOverall size: 348; bell 96 107.
Bore: v.t.s. 11.6; m.t.s. 11.6 12.6.
Dia of mouthpiece receiver: m.r.t. 12.8 12.4.
Technical description: Brass. Quick change valve for octave change operated by rotating mouthpipe; single Périnet playing valve which lowers 4½ ft Bb series of natural notes to 7 ft D series of natural notes, and lowers 9 ft Bb series of natural notes to 12 ft F series of natural notes.
Tubular receptacle of unknown purpose mounted above mouthpipe, length 39.6; bore at proximal end 12.1, at 20mm and at distal end 11.6, i.e. not matching instrument m.r.t. Finger loop on top of bell; ring for mouthpiece attachment chain.
Valve type: Périnet valve, bottom sprung; alignment by key on piston; quick change valve with Stölzel type moving part in windway, this however is the mouthpipe which is rotated through 180 to operate valve.
Inscribed on bell: heraldic emblem of shield surmounted by crown with drapes at sides / "MODELLO MINIST. / 1893 / SAMBRUN / MILANO / 66"; on one side of mouthpiece receiver (rotating valve) "TA" and on other "TB".
General literature references: M2430 in the Brussels Museum of Musical Instruments is a cavalry trumpet in Eb by Sambruna with a valve to quickly change from forwards directed to rear directed bell.
Specific literature references: Sotheby's auction catalogue 4.11.98, lot 64. |