Isaac Rogers, London: A good triple-case silver tortoiseshell verge pocket watch for the Turkish market, the outer case with tortoiseshell and silver pinwork decoration, the plain intermediary case with decorative rims, the white enamel dial with Turkish numerals and blued steel beatle and poker hands, the signed frosted gilt fusee movement No.18910, hallmarked London 1835, also containing an original watch paper, with gilt cranked key