Cover addressed to Captain Benjamin Lipsner, Chicago, IL. One US stamp affixed, Scott C2. This is related to the New York to Chicago Path Finder Flights, September 5-10, 1918. Signed by Captain Benjamin B. Lipsner.
Flying / Official Publication / Aero Club of America / Aero Club of Pennsylvania / Aero Club of Illinois / Aerial League of America / Pan-American Aeronautic Federation / 280 Madison Ave. / New York City /
Pilot / Aerial Mail / Edward V. Gardner / Max Miller / Pilot / U.S. Aerial Mail /
"Good work" / Augustus Post / Secretary Aero Club of America /
BB Lipsner / supt U.S. aerial mail division / "I should say it was / good work" /
Cancel: N.Y.CHIC. / Aeromail / 9-5-1918 / First Trip /
Cancel: Chicago, ILL. / Sep 7 / 9 AM / Special Del Sec / 1918 /(on verso)