Air Mail 1938 Flyer. Material: paper. Size: 6" x 9". Description: white paper, black print: "Air Mail letters for the Waseca National Air Mail Week flight must be mailed at Post Office before 9 A.M. on Thursday, May 19th, Mail leaves Post Office at 9:30 A.M. for Deichen Plane going to Minneapolis at 9:45, For complete information ask your city or rural carrier, Air mail envelopes and stamps are now available at the Waseca Post Office."
