Airstrip in a box: 1938

Now here is something interesting:

In December 1938, Popular Science featured this fantastic, gigantic 12-ton "landing strip in a box" for converting cow-pastures to airstrips.

Rolling swiftly down highways on ten oversize balloon tires, a revolutionary airport-in-miniature for use by passenger air lines and military air forces now provides quick and complete assistance to stranded airplanes.
This curious “twelve-ton tool box” is the invention of Kibbey W. Couse, of East Orange, N. J.
It is capable of turning any level cow pasture into an airport complete with machine shop, repair parts, floodlights, and radio.