Civil War 1863: Battle of Gettysburg and Battle of Vicksburg, Sheet of 12 x Forever Postage Stamps, USA  2013, Scott  4787-88 Collectible Stamps or Use for Postage. Double-sided sheet of self-adhesive Forever stamps (10 on one side and 2 on the other). 6 each of 2 different stamps, featuring the Battle of Gettysburg and the Battle of Vicksburg.