Aero-military Tournament postal card
The Aero-Military Tournament took place at the Kentucky State Fairgrounds (Louisville, Kentucky), November 3-5, 1911. The 'military' segment comprised a sham battle between the US Army and Mexican guerillas; the 'aero' segment involved a series of demonstration flights by Wright team members Phil Parmalee (1887-1912) and Clifford Turpin (1886-1966).
On October 31, 1911, US Postmaster General Frank H. Hitchcock authorized Louisville Postmaster Robert E. Woods to "collect and deliver mail by aeroplane at aviation meet in Fair Grounds on November third, fourth and fifth, and to establish temporary station there in accordance with plan proposed by representative of Wright Brothers, with whom you should immediately confer."
Clifford Turpin flew mail around the field on November 3 and 5. (Inclement weather had grounded all flights on November 4.) Agents used the same postmarking device on both days, making it impossible to tell on which day a particular piece of mail was flown. This card is one of very few surviving pieces.