http://collections.mfa.org/internal/media/dispatcher/1418952/resize%3Aformat%3Dfull;jsessionid=2583D8D3BAC9568F606F2A6F9F2C73E4Wheels1939Charles SheelerPhotograph, gelatin silver printPhotographs16.5100000000 Centimeterhttp://collections.mfa.org/objects/detailsrdf/155956;jsessionid=2583D8D3BAC9568F606F2A6F9F2C73E4