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Technical description: Brass; gusset in bell, French bell rim; bow guard with blade. Windway runs crook - 1 - 2 - 3 - bell. The valves are in single cluster for right hand operation; ring for R4. Swan's neck crook with adjustable fitting into instrument providing tuning facility, maximum extension 63, ligature screw restraint. No water-key.; Nominal pitch: E?.; ; ; ; ; ;

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  • Inscriptions:Stamped on valve casings "1", "2", "3", and on 2nd valve with a teardrop and "X / 1".
  • 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 720; bell 152.; Sounding length: minimum 2019.; Bore: mouthpipe at c|25mm from mouthpiece receiver (minimum bore) 11.05; crook tuning tenon from 180mm to 259mm from mouthpiece receiver, tuning-slide bore 11.45; valve cluster from 340mm to 570mm from mouthpiece receiver, v.t.s. bore (1,2,3) 12.15; at 1010mm from bell end, c|12.05; at c|378mm from bell end, 17.05. at 20.5mm from bell end, 91.B|=|0.72.Bell cutoff |1000|Hz.Dia of mouthpiece receiver: m.r.t. 12.0 - 11.15.