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Slide trumpet.
Technical description: Silver; first yard passes through channel in ball; French bell rim. The bell flare is similar to that of (465) but not that of (466). Slide proximal leg has moving outer; distal leg has moving inner; elastic rubber slide return. With curved shank for F, four single-coil crooks for E (462a), E? (462b), D (462c) and C (462d); with three short curved bits and four straight bits.; Nominal pitch: F etc.; ; ; ; ; Usable pitch: Probably built for use at circa A?=|452.4|Hz with curved bit.;
- Date:
1860-61 - Maker:
John Augustus Köhler. - Collection:
Royal Conservatoire of Scotland - Inventory number:
Loading... - Place of production:
London. - Hornbostel-Sachs classification:423.22
- Culture:
- Period:
- Materials:
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- Inscriptions:Engraved round the rim of the bell "T.|HARPER'S IMPROVED. - KÖHLER, MAKER. LONDON."; hallmarked with letters "iw", lion passant, leopard head, "e", Queen's head (indicating 1860-61, the silversmith's mark doesn't exactly correspond to any in published lists) traces of hallmark on the middle yard.
- Hornbostel-Sachs category:423.22
- Repository:Royal Conservatoire of Scotland
- Measurements:Overall size: from plane of bell to bow proximal 573; bell 109.; Sounding length: instrument with curved shank for|F, minimum 1735; with E|crook, minimum 1815; with E?|crook, minimum 1912; with D|crook, minimum 2053; with C|crook, minimum 2413; overall air column lengths of crooks: (a) 163; (b) 260; (c) 401; (d) 670; overall air column lengths of curved bits: 45, 45, 47; overall air column lengths of straight bits: 33, 42, 52, 72.; Bore: curved shank for|F at 57mm from mouthpiece receiver (minimum bore), 10.1; body at c|40mm from shank/crook receiver (local minimum bore), 11.05; at 867mm from mouthpiece receiver (with curved shank for|F) c|11.1; slide section from 939mm to 1361mm from mouthpiece receiver (with curved shank for|F), inner slides bores 11.35 - 11.25 (sic); at c|242mm from bell end, 15.85; at 14mm from bell end, 70.B|=|0.74 (in|F with curved shank); B|=|0.76 (in|D without any bit).Bell cutoff |1400|Hz.Dia of mouthpiece receiver: taper on instrument body to receive crooks, bits or mouthpiece 12.7 - 11.8; internal taper of curved shank for|F 11.3 - 10.9; of crooks (467a) 11.4 - 10.7, (467b) 11.25 - 10.7, (467c) 11.3 - 10.65, (467d) 11.3 - 10.85.