Tuba. Nominal pitch: B♭.
Technical description: Silver-plated brass. 3-valve compensating system: 3rd valve brings loop into windway which passes through 1st and 2nd valves, these have short additional loops which are brought into the windway when used in combination with the third valve. Valve type: 3 Périnet-type valves; 'Solbron' bronze pistons. Repair History: Main tuning-slide extended to lower from Old Philharmonic pitch and given cranked layout to enable insertion and removal.