English quadruple cased verge for the Ottoman market Circa 1814

Silver verge pocket watch by John Ashley
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A fine English silver quadruple cased verge pocket watch made for the Ottoman market, circa 1814.
Four cases: a protective case – silver, florally chased, with calligraphy sign; a transport case – silver and tortoiseshell, with stud decoration; an outer case – silver, polished, with case maker’s punch mark “IR” and large lateral hinge; and a inner case – silver, polished, with case maker’s punch mark “IR”. Enamel dial with Ottoman numerals, “Poker & Beetle” hands. Signed firegilt full plate movement with applied florally engraved ornaments, chain/fusee, Egyptian movement pillars, three-arm steel balance and a fine florally engraved and pierced balance cock.
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Diameter: 75 mm
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Weight: 250 g
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Signed: John Ashley, London