Slide trumpet.

Technical description: Gilding metal with brass ferrules and mechanism; French bell rim. Double-slide model; plated inner slides; windway runs: crook receiver - fixed inner slide - moving inner slide - fixed inner slide - moving inner slide - bell; expansion spring slide return in central tubes; maximum slide extension 143 (adding 572 to sounding length); twin finger hooks reminiscent of double clockspring cases. Very long dummy tubing extending towards bell to give semblance of two yards and a bow. With (470a) curved shank for F and (470b) E crook, (470c) E? crook, (470d) D crook with its own tuning-slide, (470e) D? crook with its own tuning-slide, (470f) C crook with its own tuning-slide. Double water-key with single touchpiece. Fitting for music-card holder underneath.; Nominal pitch: F etc.; Type or system: Double-slide model.; ; ; ; Usable pitch: Probably built for use at A?=|452.4|Hz.;