England, London, E. Norton
Pair cases with case of yellow metal (brass) with remnants of gilding, marked from inside "TH". Total (gross) weight 91,01 g (including case), Ø 4 cm, outer case covered by tortoise-shell, Ø 4,8 cm. White enamel dial with black Roman numerals for hours and Arabic numerals for minutes, two arrow hands. Verge escapement, ormolu, pierced balance cock, silver regulator disk, cylindrical pillars, marked: "E. Norton London" and numbered 1691. Condition B-C. Working and running well, including key..