This is a unique collection of 9 first flight covers from the period of 1930 to 1947, featuring both foreign and domestic flights. The covers showcase a variety of cancellations, including handstamped ones, and are perfect for any aviation enthusiast. The denomination, year of issue, place of origin, and color are all visible in the images provided. The covers have been used and are ungraded, making them a great addition to any stamp collection. This set is perfect for anyone interested in aviation and the history of first flight covers.