Square pianoforte

Solid mahogany, inlaid with lines of boxwood and ebony: a diagonal striped pattern framed by broad dark and thin light parallel lines. Spine of softwood. Compass: FF–f'''. 3-octave span: 485. Action: English single action, after Zumpe. Two hand stops with turned brass knobs to the left of the keywell, controlling damper-lifting mechanisms, one for the notes from FF–b flat, the other for the notes b–f'''. Pedal-operated buff stop [pedal now missing]. Stringing bichord throughout.