Historians catalog Ky. Air Guard artifacts
Kentucky National Guard command historian John Trowbridge catalogs a helmet Oct. 6, 2011, during a survey of memorabilia housed in a mini-museum at the Kentucky Air National Guard Base in Louisville, Ky. The museum, called Heritage Hall, lines the hallways of the 123rd Airlift Wing Maintenance Hangar. (U.S. Air Force photo by Master Sgt. Phil Speck)