The Ann Arbor Stamp Club will present AAPEX 2011, its annual stamp show, on Saturday and Sunday at the Washtenaw Community College Morris Lawrence Building, 4800 E. Huron River Drive. An item published in the "Best Bets'' in today's newspaper incorrectly said that the show would occur on Friday and Saturday. There is no show on Friday. The hours on Saturday will be from 10 a.m. to 5 p.m., and the hours on Sunday will be from 10 a.m. to 4 p.m. Admission is free. For more information, call (734) 761-5859.