A George III mahogany longcase clock with eight day movement striking on a bell, the 12-inch brass breakarch dial with silvered arch, inscribed 'High Water at Bristol Key', above a rolling moon, the silvered chapter ring with Roman hour numerals and outer Arabic minutes, framing an engraved matt gilt centre within silvered subsidiary seconds, signed 'Nevitt Bristol', and date aperture, cornered with cast and pierced gilt spandrels, the hood with swan neck pediment and Corinthian columns, the trunk with shaped door and fluted cut corner columns, on a plain base and plinth, height 225cm, with pendulum and two weights (faults). Note: Thomas Nevitt is a recorded Bristol clockmaker working from 1754 to 1784.