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This advertisement for the
United States Rubber Company's T-56 rubber appeared in the Annual Edition of Air Trails. T-56 was a very
popular choice for free flight modelers back in the day.
I posted another ad for them from an April 1957
American Modeler. United States
Rubber Company was one of the original 12 companies used to calculate the Dow Jones Industrial Average (DJIA) for
the stock market on Wall Street. In addition to manufacturing automobile and airplane tires, it also supplied the
free flight model world with T-56 rubber for powering.
United States Rubber Company Ad
 The Power of Champions!
There's nothing like long-lasting, power-packed T-56 for rubber-powered planes. Made of fine Brazilian para rubber,
"T-56" is scientifically compounded to take maximum winding ... return a high percentage of power ... give consistent
propulsion, flight after flight. Insist on T-56 and be "power sure." United States Rubber Company Rockefeller Center New York
Posted February 15, 2014
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