This 6-1/2 inches x 3-1/2 inches. First Day Cover honoring the centennial of tennis, 10-cent embossed tennis envelope, postmarked Forest Hills, New York, August 31, 1974, FIRST DAY OF ISSUE. Signed by John McEnroe and framed for an event held in Myrtle Beach where it was presented to me...just no longer desire and selling it here! It comes in the wooden frame and matted with plaque as shown. Overall 11-1/2 inches x 9-1/2 inches
