In 1997, the United States Postal Service issued a miniature sheet of 20 postage stamps honoring classic U.S. aircraft. Included are: North American F-51 Mustang, Wright Flyer Model B, Piper Club, Lockheed Vega, Northrop Alpha, Martin B-10, Chance Vought Corsair F4U, Boeing B-47 Startojet, Granville Gee Bee, Beech Staggerwing, Stearman PT-13, Lockheed Constellation, P-38 Lightning, P-26 Peashooter, Ford Tri-Motor, Douglas DC-3, Boeing 314 Clipper, Curtiss Jenny, Grumman F4F Wildcat.