Datei:John Roger Arnold No.3552 (3) Zylinderrad und Zylinder.jpg

John Roger Arnold No.3552 Zylinderrad_und_Zylinder

An early 19th Century English ruby cylinder by Arnold in later purpose made gold pair cases. Full plate gilt keywind fusee movement with dust ring. Blue steel Harrison's maintaining power. Engraved cock with garnet endstone, blue steel regulator with bimetallic compensation curb. Plain three arm steel balance with blue steel spiral hairspring. Ruby (sapphire) cylinder, large brass escape wheel, pivots with endstones. Signed white enamel dial with subsidiary seconds, Roman numerals, blue steel seconds hand, gold hands. Purpose made plain 9 carat pair cases hallmarked London 1964, maker's mark "MRM" in a rectangle (Martin Matthews). Signed Jn R Arnold - London 3552, Circa 1811, Diameter 60 mm . See John Arnold & Son by Vaudrey Mercer page 158 and plate 186

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