A lady's gold, enamel and diamond-set openface keyless lever watch Cartier, no.1307, circa 1920 gilt-finished jewelled lever movement, silvered matt dial, Arabic numerals, blued steel moon-style hands, white enamel wave pattern bezel, in circular ultra thin case with translucent pinkish white enamel decoration on a guilloche base, centred by a rose diamond-set floral motif, foliage decorated bow, dial signed Cartier, diameter 27 mm. Property from the Collection of Dame Nellie Melba GBE