DescriptionTechnical description: Brass; german silver stays, ferrules and garland; garland 74mm wide. No tuning-slide; sprung main slide buffers. Repair History: The ascending inner slide may be a replacement.
Overall size: 1217; bell 232.
Sounding length: minimum 2734.
Bore: at c 32mm from mouthpiece receiver (minimum bore), 12.5; expanding by 100mm from mouthpiece receiver to bore c 12.9; descending slide up to 65mm from distal end, 13.1 then step to 13.5 for remainder; ascending slide, 13.3; at 40mm from end of tenon at joint, 13.4; at end of tenon at joint, 13.1; at c 564mm from bell end, 18.8; at 36.2mm from bell end, 109.2. B = 0.73. Bell cutoff = 1000 Hz.
Dia of mouthpiece receiver: m.r.t. 13.5 - 12.7.
Inscribed on bell garland: crown / "R.SCHOPPER / Hoflieferant / Leipzig"; on mouthpiece receiver ferrule "14580".
Decorative features: Snake embellishments on main bow and on slide bow; combing on stays and ferrules; embossed shells on inner edge of garland.
Usable pitch: Plays at A⁴ = 437-439 Hz.
Specific literature references: Myers 1997, pp.242 243. |