Trumpet, B-flat
Maker
Yamaha
Date1970 ca.
Place MadeHamamatsu, Japan, Asia
ModelCustom YTR-920X
Serial No.001
SignedStamped on 2nd valve casing: YAMAHA / JAPAN (all inside flat oval)MarkingsStamped on 2nd valve casing: YTR-920X / Bb ML / 001
Stamped on 1st and 3rd valve casings: 1 and 3, respectively
Dark-red etched on mouthpiece receiver: [Yamaha logo] YAMAHA Custom (cursive)
Dark-red etched on bell: D. Thompson (cursive)
Stamped on each piston spring-casing: 1/ML 2/ML 3/ML
DescriptionLightweight, yellow brass with silver-plated trim, and mother-of-pearl touchpieces. Reverse, rose brass leadpipe. Three top-sprung piston valves. Two single water keys on main tuning slide and 3rd valve slide. One finger hook on leadpipe; 1st valve slide finger hook; 3rd valve slide fixed finger ring with stopper screw. Medium large bore. Name dedication "D. Thompson" on bell made with dark-red etching. Original silver-plated brass mouthpiece with gold-plated rim and cup; Herrick model; this mouthpiece is a Yamaha blank copied from the original Thompson mouthpiece custom-made by Burt Herrick (Burbank, CA) in 1965.
This trumpet was custom-made for Dale Thompson, one of the first American Yamaha trumpet artists who collaborated with Yamaha engineer, Yoshihiro Kaji, and Yamaha trumpet designer, Kenzo Kawasaki, in the development of Yamaha trumpets. In 1970, Thompson, who also played lead trumpet in the touring Glenn Miller Orchestra (1967-1973), received this trumpet directly from Yoshihiro while touring Japan. This trumpet, serial number 001, became the prototype for the professional Yamaha trumpet model YTR-6320, one of Yamaha's most successful lines in the 1980s and 1990s.
DimensionsOverall length (bell to receiver): 488mm
Bell diameter: 124mm (4 7/8in)
Tube length: 1312mm
Minimum bore at mouthpiece receiver: 8.6mm
Bore at leadpipe exit: 11.4mm
Bore at slides: 11.4mm
Yamaha ML bore standard: 11.68mm / 0.460in
ProvenanceDonated by Dale Thompson, Henderson, Nevada.
Credit LineGift of Dale Thompson, 2024
Object number15826
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