This is a 1935 vintage ad for Thompson Products, Inc. has a colorful art illustration of two airplanes flying closely together with runways and hangars below with the headline, “Indianapolis of the Sky”.
Year Published: 1935
Approximate overall size – inches: 11 x 14
“Proving ground tor the automobile, the Indianapolis Speedway race has encouraged the development of faster, safer cars.
Proving ground for aircraft, the Thompson Trophy Race is already having the same effect on airplanes.
In the past four years the top speed of winning ships has increased more than 100 miles per hour; qualifying speed has been raised from 175 to 225 m.p.h.; and a plane developed expressly for this race set a new world’s land plane record.”
This is a 83 yr. old original vintage ad removed from a 1935 publication and is not a reproduction of any kind.
Wikipedia on the Thompson Trophy