In Madison, Wisconsin, ANTIQUES ROADSHOW investigates the shocking heist of artifacts from the archives of the Wisconsin Historical Society. Highlights include photos of the owner's family taken by noted American photographer Edward Weston in the late 1930s or early 1940s; a table crafted for the owner's parents circa 1956 by mid-century-modern master furniture maker George Nakashima; and an ornate silver, enamel and turquoise-studded exhibition piece, crafted by Tiffany for the 1893 Columbian Exhibition in Chicago.