The Physical Evidence 33. A Mannlicher-Carcano rifle, serial number C2766, was found on the sixth floor of the Book Depository Building shortly after the shooting in Dealey Plaza. Handwriting experts determined that the writing on the purchase order and money order for the rifle was Oswald's. And the seller shipped the rifle to Oswald's post office box in Dallas. So Oswald owned the Carcano. Also, photographs taken by Oswald's wife, Marina, in April of 1963 show Oswald holding the CArcano, and Oswald's right palm print was found on the underside of the rifle following the assassination. So we know that Oswald not only owned but possessed the subject rifle. In the same vein, a tuft of several fresh, dark blue, gray-black, and orange-yellow cotton fibers was found in a crevice between the butt plate of the Carcano and the wooden stock. The FBI laboratory found that the colors, and even the twist of the fibers, perfectly matched those on the shirt Oswald was wearing at the time of his arrest. Though such fibers could have come from another identical shirt, the prohibitive probability is that they came from Oswald's shirt. Vincent Bugliosi's - Reclaiming History, p. 963.