As a matter of interest an unplayable and unrestored John Broadwood double harpsichord inscribed 'Johannes Broadwood Londini fecit, 1790' was sold at Gorringes auction in Lewes today for a hammer price of £1400 which, with buyers premium, taxes etc would mean a payment nearer £1800. It was knocked down after fierce internet bidding having been estimated at £250/350. I would have liked to buy it and restore it myself, but not at that price! There's certainly everything there for an excellent restoration project though, save that the music desk had disappeared.
Disposition Upper manual 8', Lower manual 8', 4', lute stop, buff stop and coupler.