ANTIQUES ROADSHOW visits the Wichita Art Museum's collection of Art Nouveau works by glassmaker Frederick Carder, co-founder of the Steuben Glass Company. Discoveries include a 1920s Buddy "L" toy sand and gravel truck; a 19th-century bronze sculpture by British artist Edward Onslow Ford; and an 18th-century surveyor's compass, made by one of the finest clockmaker's in the Virginia colonies, valued at $ 20,000 to $25,000.