This USA 6 Cent Red Air Mail Stamp (1940's) is a gem worth adding to your collection. Featuring an aviation theme, this stamp is cancelled by a machine cancel and originates from the United States, specifically Washington. Measuring 1 stamp in block height and 1 stamp in block width, this stamp has a lovely red colour that is sure to catch the eye. Although the year of issue is unknown, this stamp is in great quality and is perfect for any stamp enthusiast.