A very small and unusual French Palais Royal clock made of mother-of-pearl and abalone “Zapler” or “Cow Tail” and decorated with ormolu. The clock is by Leroy a Paris and set upon an ebonised base. The design is in the form of a classical building, perhaps the Opera House in Paris. The dial is signed Leroy a Paris and the movement is signed ‘Roi a Paris’ . The two-day movement is regulated by the pendulum that swings in front of the dial. The clock retains its original glass dome. French 1820 £2,500