DescriptionTechnical description: Boxwood; 5 sections; silver keys; 5 ivory ferrules plus cap; graduated, wood-covered tuning-slide; graduated screw-stopper; metal-lined head; oval embouchure-hole; overlapping low C/C♯ touches.
Keymount type: ring/knob.
Keyhead type: pewter plug, with metal-lined key-holes.
Stamped "WILLM. HENY. / POTTER / JOHNSON'S COURT / FLEET STREET / LONDON", with "PATENT" stamped on head ferrule and foot; tuning gradations stamped "4", "5" and "6" on tuning-slide and screw.
Overall size: 673mm
Sounding length: embouchure to foot, 594mm
Bore: conical
Stamped "WILLM. HENY. / POTTER / JOHNSON'S COURT / FLEET STREET / LONDON", with "PATENT" stamped on head ferrule and foot; tuning gradations stamped "4", "5" and "6" on tuning-slide and screw.
Performance characteristics: Range C⁴ - B♭⁶. All notes speak, mechanism sound, screw-stopper working.
Usable pitch: On 6, A⁴ c 442 Hz; on 5, A⁴ c 438 Hz; on 4, A⁴ c 435 Hz. |