Cardboard Promotions Big Free Admission Sports Card Show, Saturday, August 29, 10 am-6 pm, Solomon Pond Mall, Marlboro. Over 125 Vendor Tables, Mostly Old & New Sports Card & Memorabilia with some Pokemon & TCG cards & collectibles. Regular Autograph Guests: Hockey Hall of Famer Glenn Anderson and 300 NHL goal scorer Tony McKegney. Free Autograph Guest: former Celtic Ernie DiGregorio