Tenor trombone. Nominal pitch: B♭.
Technical description: Silver-plated brass. Descending slide has fixed inner slide with stocking at bottom, moving outer slide (as usual); ascending slide has moving inner slide with stocking at top, fixed outer slide (opposite of usual); both inner slides have expanding bore. Tuning-slide legs have expanding bore, although externally cylindrical. Water-key on main slide bow. The model with an 8-inch bell is described in the maker's brochure as 'Symphony model (wide bore)'.