This envelope, addressed home to Richmond, California in February 1945, is part of a collection of wartime letters from Pfc. Ross Moon, an American serviceman stationed overseas with APO 468. Marked 'Free' in place of a postage stamp, it reflects the U.S. military's policy of allowing enlisted personnel to send mail home without charge — a small but vital link between soldiers and their families during World War II. Project: 218346