Part 2 of 3 in San Diego features an 18th-century ivory carved crèche; a banner from George Washington's inauguration ball; and a circa-1900 Turkmenistan rug that's valued at $125,000 to $150,000. Also: the evolution of the cutlass, a 19th-century sailor's sidearm, is discussed aboard the USS Midway, the longest-serving U.S. Navy aircraft carrier of the 20th century.