In Mobile, Alabama, ANTIQUES ROADSHOW host Mark L. Walberg and appraiser Ken Farmer tour the Mobile Medical Museum, with its intriguing medical instruments, quack devices and items devoted to medical history spanning three centuries. At Mobile's Arthur R. Outlaw Convention Center, the excitement is contagious when ROADSHOW experts discover a highly desirable Confederate army belt buckle; an archive of letters and documents from Franklin Delano Roosevelt bought at an estate sale for $5; and a beautiful circa 1850 Virginia painted chest, estimated to be worth $60,000.