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Technical description: brass; french bell rim; with projecting blade on bow guard. Valve touchpieces with mother-of-pearl or abalone insets. With fitting for music-card holder; no water-key.; Nominal pitch: B?.; Type or system: 3 valves.; ; ; ; Usable pitch: Probably built for use at circa A?=|446|Hz with extant main tuning-slide.;

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  • Inscriptions:Embossed on circular applied german silver plaque on bell "KONINGLIJKE NEDERLANDSCHE FABRIEK VAN MUZIEK INSTRUMENTEN" surrounding a heraldic device; stamped in banner above the applied plaque "MEDAILLE D'OR / ANVERS 1894"; stamped below the applied plaque "M.J.H.|KESSELS / TILBURG" / five-pointed star; stamped on 2nd valve casing "68" and in an ellipse "M.J.H.|KESSELS / TILBURG" and "5048".
  • Hornbostel-Sachs category:423.232.2 Valve horns with wider bore
  • Repository:Royal Conservatoire of Scotland
  • Measurements:Overall size: from plane of bell to bow guard 618; bell 233.; Sounding length: minimum 2650; it is postulated that a main tuning-slide 60mm shorter could have been provided.; Bore: mouthpipe at c|30mm from mouthpiece receiver (minimum bore) 10.9; main tuning-slide from 205mm to 494mm from mouthpiece receiver, m.t.s bore 12.55; valve cluster from 554mm to 694mm from mouthpiece receiver, v.t.s. bore (1,2,3) 13.4; at 1325mm from bell end, c|17.3; at c|840mm from bell end, 24.45; at 30mm from bell end, 135.B|=|0.53.Bell cutoff |800|Hz.Dia of mouthpiece receiver: m.r.t. 11.4 - 11.15.