1915 Indianapolis 500 Winner - Ralph DePalma
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Race:
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Date:
Ralph DePalma
Mercedes 18/100 4.5 L 4-cylinder
Mercedes / Knight-Hotchkiss
Speedway, IN
International 500-Mile Sweepstakes
Indianapolis Motor Speedway
2.5-mile oval, brick surface
Sunday, May 31st, 1915
