Description4 valves.
Technical description: brass (meagre silver-plating mostly worn off); water-key and fitting for music card holder. Valve type: 4 Périnet valves, bottom sprung; alignment by key on piston.
Overall size: 1141; bell 214.
Sounding length: minimum 3594.
Bore: mouthpipe at c mm from mouthpiece receiver (minimum bore) 10.8; m.t.s. at c mm from mouthpiece receiver, tuning slide bore 13.0; centre of valve cluster at c mm from mouthpiece receiver, v.t.s. bore (4,3,2,1) 13.0; at 1797mm from bell end, c 13.3; at c 1246mm from bell end, ; at 24.3mm from bell end, 127.7. B = 0.67. Bell cutoff = 900 Hz.
Dia of mouthpiece receiver: m.r.t. 13.5 - 12.3.
Inscribed on bell "C. MAHILLON / FOURNISSEUR / BREVETE / DE L'ARMEE / ET DES / CONSERVATOIRES / BRUXELLES" / "Y" within six pointed star. Embossed circular plaque of heraldic motif with three lions rampant, two crowns and motto "L'UNION FAIT LA FORCE", and along lower edge "C. MAHILLON BRUXELLES".
Decorative features: mother of pearl buttons.
Mother of pearl missing from one button.
Tear in receiver on bell for valve section repaired by J. Webb, 2007-8. |