Rare Swiss enamel watch with double-sided scene Circa 1815

Double-sided pocket watch with erotic scene
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A fine and rare Swiss, double-sided, painted on enamel watch back with an erotic scene, circa 1815. Accompanied by a red morocco case. The reverse polychrome is painted with a scene of an innocent young couple holding hands in a landscape, the gentleman with a yellow jacket and white breeches, the lady in a pink and white dress and bonnet against a blue background. The interior is painted with a scene of the young couple in the boudoir enjoying their wedding night.  
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Diameter: 49,5 mm
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Signed: No Name