FDC produced for the pair of 18c stamps issued in Yorktown, Virginia, on October 16, 1981, in honor of the Battle of Yorktown (Sc. 1937) and the Battle of Virginia Capes (Sc. 1938). Red & black cachet on a beige envelope produced by Patriot Covers, featuring a map of the �Siege of Yorktown�. This cover bears an Unofficial First Day Cancel from B. Free Franklin Station, Philadelphia, Pennsylvania. Unaddressed. Open back flap. Key Words: Bicentennial - Navy - Naval action - ship - American Revolution - Revolutionary War - French Alliance - France - Yorktown - Virginia Capes.