Tenor slide trombone.

Technical description: silver-plated brass; nickel-plated inner slide. French bell rim. The slide stockings each have four circumferential depressions to retain oil. The tuning-slide legs have long stockings. Cylindrical tenon at joint with ligature restraining screw on bell section; with slide lock. Alternative tuning-slides for high and low pitch. With water-key.; Nominal pitch: B?.; ; ; ; ; Usable pitch: Probably built for use at circa A?=|452.4|Hz with missing tuning-slide and built for use at circa A?=|439|Hz with extant tuning-slide.;