A method of correspondence developed during World War II that allowed US civilians and military personnel abroad to communicate. The system was based on letter-sheets designed to fold into envelopes, and which allowed only for brief texts. After mailing, V-Mail letters were reviewed by censors, photographically reduced on microfilm, and sent to processing centers overseas where facsimiles were reproduced at one-quarter their original size. These facsimiles were then delivered to the addressee. The system allowed for the reduction of shipping space needed for war materials, and speeded delivery by air rather than by sea. (en)