Men changing spark plugs on Buick racecar, 1910 Indianapolis races
View of men changing spark plugs on Buick car for 200 mile race during the 1910 races at the Indianapolis Speedway in Indiana. Officials' stand in background. Handwritten on back: "Chevrolet (Buick) in for new spark plugs in 200 mile race. Races and racing--Indianapolis races, 1910."