A large George III style mahogany chiming longcase clock of exhibition quality

A large George III style mahogany chiming longcase clock of exhibition quality, the substantial brass three train movement with deadbeat escapement and Harrison's maintaining power, chiming the quarters on eight tubular bells and the hour on a separate gong, with three brass cased weights and a mercury pendulum, the shaped gilt brass dial engraved with scrolling foliage, with a silvered chapter ring, with Arabic numerals and subsidiary seconds, chime/silent and Westminster/ Whittington dials, inscribed 'MAPLE & CO. LTD. LONDON', in a carved Chippendale style case, the arched hood carved with leaves and with turned finials, above a trunk with three glass panels decorated with acanthus leaves and latticework, flanked by fluted baluster columns, on a conforming plinth and ogee bracket feet, late 19th / early 20th century, 269.3cm high, 66cm wide.