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Valve trumpet.

Technical description: Brass, French rim. Main tuning-slide with moving proximal outer slide and moving distal inner slide. Fitting for music-card holder on third valve tuning-slide outer.; Nominal pitch: F etc.; Type or system: 3 valves.; ; ; ; Usable pitch: Probably built for use at A?=|452.4|Hz.;

  • Measurements:Overall size: from plane of bell to bow proximal 389; bell 125.; Sounding length: minimum 1738.; Bore: shank at c|55mm from mouthpiece receiver (minimum bore) 10.45; valve cluster from 137mm to 262mm from mouthpiece receiver, v.t.s. bore (1,2,3) 11.05; main tuning-slide from 556mm to 887mm from mouthpiece receiver, m.t.s. bore 11.05; at 869mm from bell end, c|11.05; at c|279mm from bell end, 15.6; at 17.5mm from bell end, 67.B|=|0.77.Bell cutoff |1400|Hz.Dia of mouthpiece receiver: m.r.t. 11.4 - 11.05.