Dominion Rubber Company fonds
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- Firing gun into steel shield and dropping tire from helicopter
- Two narrated films produced by U.S. Royal Tires about the company's Steel Shield tires and the company's standard car tire, both made in Scotland. The first film (1 min.) consists of footage of a Steel Shield Tyre and an ordinary tire being shot at with a riffle, after which the ordinary tire deflates and the Steel Shield tire remains intact. The second (1 min.) consists of footage of a standard U.S. Royal Car Tyre being put through a rigorous series of driving tests after being dropped from a helicopter onto concrete.