On Saturday, April 28, 1979 at the Boston Garden middleweight Marvin Hagler was scheduled to appear in an exhibition on a show featuring lightweights Sean O'Grady and Tony Petronelli. The show was cancelled. Offered here is an original on site poster for this cancelled event. This is an original, cardboard, on site poster which pictures O'Grady and Petronelli. Bold color and print. Bold, clear images. Clean front and back. Mild corner creases. 17" x 22."