Swiss blue guilloche enamel and silver gilt sub-miniature carriage or boudoir clock, original case and key. A very small sub- miniature by the Geneva Clock Co in a fabulous case with high quality 3/4 plate movement. The silver gilt in perfect condition as is the beautiful deep blue guilloche enamel, no marks or repairs. The enamel on the sides, front and top. The decoration beneath the enamel is of diamonds within tramlines. A lovely dial within beaded silver glazed bezel. The dial with engine turned gilt centre and with gilt outside ring of minute dots. Annular silver dial with Arabic numerals and blued steel moon hands. Below the 12 on the dial it is signed Plojoux Geneve for the retailers. The eight day 3/4 plate movement very unusually has its' backplate silvered and engraved, a sign of high quality. 1.6 inches high by 1.1 inches wide and 0.7 inches deep (4 cm by 2.75 cm by 1.75 cm). On base "Argent 0.935 JTC 98 78". On Backplate " 3 Adjustments, 14 jewels, GC Co ( for Geneva Clock co), Swiss and numbered 20529). Swiss circa 1910-20. Set in original Morocco case with silk lining with original key recessed to back of case.