Draper the tire salemans Dodge, with Trublpruf solid rubber cross drilled tires, never will go flat

Below photo is from the front window display of his business http://justacarguy.blogspot.com/2009/01/trublpruf-tires-by-lambert.html

http://www.shorpy.com/node/9969
Tires were flat so often, that this solution was considered a great idea, and cars didn't driver very fast, since roads were in such terrible condition, and there were very few miles of paved road in the entire country of the US