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Piston bugle.

Technical description: A 'bugle' in North American drum corps teminology, but of trumpet bore profile. Brass, longitudinal valve placement. With hook for L1 or R1 with valve operated by L0 or R0. Water-keys on main tubing and on valve loop.; Nominal pitch: G|+|D.; Type or system: 1 valve.; ; ; ; Usable pitch: Probably built for use at circa A?=|440|Hz.;

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  • Inscriptions:Stamped on side of bell with unicorn head / "POTTER / LONDON"; stamped on valve casing "633650".
  • Hornbostel-Sachs category:423.233.1 Valve trumpets with short air column (less than 2 m)
  • Repository:Royal Conservatoire of Scotland
  • Measurements:Overall size: from plane of bell to mouthpipe proximal 480; bell 129.5; Sounding length: minimum 1620.; Bore: mouthpipe at c|35mm from mouthpiece receiver (minimum bore) 10.05; main tuning-slide from 433mm to 772mm from mouthpiece receiver, m.t.s. bore 12.0; centre of valve at c|797mm from mouthpiece receiver, v.t.s. bore 12.0; at 810mm from bell end, 12.0; at c|281mm from bell end, 16.95; at 17.8mm from bell end, 69.8.B|=|0.70.Bell cutoff |1400|Hz.Dia of mouthpiece receiver: m.r.t. 12.0 - 10.3.