An ebonised bracket timepiece

An ebonised bracket timepiece, the brass eight day single fusee movement, with a verge escapement, with a false pendulum and rise and fall regulation, with four turned pillars, the arched 6in dial with a silver chapter ring with Roman and Arabic numerals, with subsidiary calendar, seconds and strike/silent dials, with gilt brass scrolling foliage and mask spandrels, signed 'Wm Graham London', the inverted bell top with a brass handle and a plain moulded case, with arched glazed side panels, 18th century elements, 39cm high, 23.7cm wide.