This buy-sell-trade sports card and memorabilia show offers a chance to meet Red Sox Hall of Famer Rich Gedman and NBA Champ Clifford Ray. Door prizes are announced every hour and over 85 vendors will be in attendance. The event runs from 8:30 a.m. to 2:15 p.m. Admission is $3 and free for children under 12 years old. For more information, click here.