This linen postcard features a US Air Corps Bomber AC3, with the title "Keep Em Flying". The postcard is a single unit, with a standard size of 5.5 x 3.5 inches. It is a vintage item from the era of linen postcards (1930-1945) and is perfect for collectors of militaria. The postcard is stamped and has a divided back, with the Linen (1930-1945) era and the United States as the country of manufacture. It is a great addition to any collection, with a unique theme of air force and militaria. This item is a must-have for any postcard enthusiast or collector.