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BROOKLYN, MI - SEPTEMBER 18: Al Unser leads a group of cars in his Parnelli VPJ6B 001/Cosworth TC during the Michigan Grand Prix IndyCar race at Michigan International Speedway near Brooklyn, Michigan, on September 18, 1976.
BROOKLYN, MI - SEPTEMBER 18: Al Unser leads a group of cars in his Parnelli VPJ6B 001/Cosworth TC during the Michigan Grand Prix IndyCar race at Michigan International Speedway near Brooklyn, Michigan, on September 18, 1976.
Filename: IND176Mich-g05.jpg
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