First flight cover
On the return flight (outbound flight: September 5, 1918 – New York – Chicago via Lock Haven, Pennsylvania, Cleveland and Bryan, Ohio), Max Miller left Chicago on September 9, remaining overnight at Lock Haven and arriving at Belmont Park on the next day. Edward Gardner and his mechanic, Edward Radel, departed Chicago on September 10 and arrived in New York on the same day, crashing at Hicksville when they could not find the Belmont Park airfield.
Officials used regular machine cancels in all the cities along the route, with Lock Haven again applying a single-line cachet, as was done on the westbound trip. Reports show that Miller carried 148 3/4 pounds mail (2,974 pieces) and Gardner carried 3 1/2 pounds (sixty-eight pieces).
G. Burnley Hall, Lock Haven, Pennsylvania, addressed this item to Mr. D. E. Lantz, Washington, DC, and officials in Lock Haven postmarked it at 2 p.m. on September 9, 1918, with a black, circular mark. A wavy, flag killer bar canceled the 24-cent stamp.