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Soprano keyed bugle.

Technical description: Copper with german silver mouthpiece receiver sheath, chimneys and keywork. French bell rim. A finger-rest passes over the 3rd key from the bell. The 5th key from the bell is mounted on a bridge for operation by the left hand.The keys with leaf springs SATK, the spring ends running in channels extending from the keymounts.; Nominal pitch: E♭.; Type or system: 7 keys.; Keyhead type: flat round.; Keymount type: saddles.; Usable pitch: Probably built for use at circa A₄=|452.4|Hz.;

  • Measurements:Overall size: from plane of bell to bow proximal 375; bell 124.; Sounding length: maximum 995.; Bore: instrument body at c|40mm from shank/crook receiver (local minimum bore), 10.75; at 497mm from bell end, c|18.2; at c|327mm from bell end, 25.7; at 9.3mm from bell end, 89.2.B|=|0.53 (all keys closed).Bell cutoff |1500|Hz.Dia of mouthpiece receiver: m.r.t. 11.2 - 10.75.