A brass and glazed four-glass mantel clock

A brass and glazed four-glass mantel clock, the circular French eight-day bell striking movement stamped B.R 83781 and 5 8 to backplate, and with 3 3/4inch white enamel Roman numeral dial signed CLERKE ROYAL EXCHANGE LONDON within a gilt metal bezel, the bevel glazed case 31cm high

The case with marks, knocks, scratches, consistent with age and use, also with some pitting and discolouration,