Grey Matter Art is releasing a Captain America comic book cover for the super hero’s 80th birthday. The cover Bicentennial Battles, was done by Jack Kirby & Frank Giacoia and originally appeared in March 1941. The print is 18″ x 24″, hand-numbered fine art giclee and comes in edition size of 100. The print goes on sale March 31st at 1pm EST in the GMA shop.