Technical description: Silver-plated brass. Extension piece for main tuning-slide to put instrument in B♭; extension piece for 3rd valve tuning-slide to give `doigté ministériel' tuning.
L1: 4th valve: perfect 4th.
L2: 5th valve: semitone.
L3: 6th valve: perfect 5th.
R1: 1st valve: two semitones.
R2: 2nd valve: semitone.
R3: 3rd valve: minor 3rd, with extension piece for major 3rd.
Valve type: 6 Périnet valves in two groups of three.
Performance characteristics: Good instrument for the high register; not stuffy in the low register. 6 valves give opportunity to play whole compass in tune. Good compass down to pedals, even with small mouthpiece. However pedal notes not so good when in B♭. Bright, direct, ophicleide-like sound.
Usable pitch: A₄ = c 440 Hz.
Signature/Marks: Inscribed on bell "MONOPOLE / COUESNON / PARIS / 23537 / MONOPOLE / CONSERVATOIRES / MADE IN FRANCE"; on valve casings "1", "MONOPOLE / CONSERVATOIRE / PARIS / 2", "3", "4", "5", "6"; on reverse side of 2nd valve "K", and on reverse side of 5th valve "C".
General usage of type: This tuba, built in the high (for tubas) key of 8 ft C, but equipped with six valves to make the register playable, was the standard orchestral instrument in France until quite recently.
R. Parks, 1.12.90, 8.1.94; C. Bevan 1.12.90; A. Myers, bore 20.9.97, 14.8.10.
612; bell 266.
ex- Bruno Kampmann collection.; on loan to the Collection.