This is a Scott C28 stamp from the United States, issued in 1941 with a denomination of 15 cents. The stamp is in the color brown carmine and is an airmail stamp featuring aviation as the topic. The stamp is of high quality, with a grade of XF (Extremely Fine) and a certification from PSE. It has never been used and is in mint condition with original gum. This stamp would make a great addition to any stamp collection.