Sport | 1940 | Sound | B/W
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Making tennis balls at Dunlop.
An animated tennis ball, stop motion which unravels. Raw rubber processed in factory. Cut into strips on a machine. Shaped into half shells. The moulding process - made round. Cloth covers are made. Applied by machine and by hand. Steam heated. Balls are then tested. A bouncing machine. An endurance test with an automated racket. Tests by people for compression, size and weight.
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