55th Daytona 500 - Day 1

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The helmet of Dale Earnhardt Jr., driver of the National Guard... News PhotoChevrolet,Dale Earnhardt Jr.,Daytona Beach,Daytona International Speedway,Driver,Florida - US State,Gulf Coast States,Headwear,Helmet,Horizontal,Motorsport,National Guard,Practicing,Sport,Sports Helmet,Sprint Cup Series,Stock Car Racing,USAPhotographer Collection: Getty Images Sport 2013 Getty ImagesDAYTONA BEACH, FL - FEBRUARY 15: The helmet of Dale Earnhardt Jr., driver of the #88 National Guard Chevrolet, before practice for the NASCAR Sprint Cup Series Sprint Unlimited at Daytona International Speedway on February 15, 2013 in Daytona Beach, Florida. (Photo by Jonathan Ferrey/Getty Images)