December 10, 1918 	6¢ Orange 	Curtis Jenny Biplane 	Scott #C1 		2,134,988
Bureau of Engraving and Printing; Imaging by <a href="//commons.wikimedia.org/wiki/User:Gwillhickers" title="User:Gwillhickers"><i>Gwillhickers</i></a>
1918-12-10
U.S. Post Office