The product is a block of four Canada 17 cents Airmail special delivery stamps from 1943. These blue stamps feature a design related to aviation and are in mint never hinged condition. The stamps are from the 1941-1950 period and come from Canada. They are classified as F/VF (Fine/Very Fine) and are uncertified. This collectible item is a rare find for stamp enthusiasts interested in Canadian postal history during the mid-20th century.