Friday's release ceremony, slated for 11 a.m. at the Park Grill, 11 N. Michigan Ave., will feature chef Stephanie Izard, winner of "Top Chef" season 4 and owner of Girl & the Goat restaurant in Chicago. Louisa Chu and Monica Eng, hosts of WBEZ radio's weekly podcast, "Chewing the Fat," will serve as emcees. The stamps will be sold from 9 a.m. to 2 p.m. at the restaurant.