From September 11 to 21, dealers in art, antiques, furniture, and jewelry will display their wares in Paris at the XXIV Biennale des Antiquaires (www.bda?france.eu), the oldest of the international art and antiques fairs. This 24th edition of the biannual event will draw nearly 100 galleries from 11 countries. The vendors will display some 8,000 objects from the 4th century B.C. through the 1970s—from the era of Alexander the Great through that of Richard Nixon, from works in stone through works in plastic. French jeweler and watchmaker Cartier used onyx, coral, diamonds, mother-of-pearl, and laque burgauté to construct the Écran clock pictured here. The circa-1926 piece, which measures just 5.5 inches tall, will be one of 60 Cartier items on display at the Biennale des Antiquaires The fair will take place in the Grand Palais, the landmark Beaux Arts exhibition hall that was built in 1900 for the World’s Fair.