HISTORY DETECTIVES - PBS Series SEASON 5 Episode 506 - Includes: NC-4: ACROSS THE ATLANTIC (A woman in Saratoga, CA has piece she believes comes from the NC-4, on of four U.S. Navy 'flying boats' + HOWARD HUGHES CRASH (A man in Laramie, WY owns a 1940s altimeter from his father who claimed it was from Howard Hughes' XF-11 aircraft + PROFESSOR LOWE'S HOT AIR BALLOON (A collector from Midland, MI may have purchased a fragment of American aviation history). Dvd. 60 minutes. Color. 2007. Not rated. English: Stereo. America's top gumshoes are back for a fifth season to prove that an object found in an attic or backyard may be anything but ordinary. Wesley Cowan, independent appraiser; Gwendolyn Wright, professor of architecture; Elyse Luray, expert in art history; and Tukufu Zuberi, director of the Center for Africana Studies at the University of Pennsylvania leave no stone unturned as they explore the stories behind local folklore and family legends.