Euphonium. Nominal pitch: B♭.
Technical description: silver-plated brass. 4-valve compensating system. 4th valve brings loop into windway which passes through 1st, 2nd and 3rd valves, these have short additional loops which are brought into the windway when used in combination with the fourth valve. Water-keys on 1st v.t.s. [3rd v.t.s. missing] and m.t.s.; fitting for music card holder. Valve type: 4 Périnet valves, bottom sprung; alignment by key on piston; latch for holding 4th valve depressed.