In March 1963, Lee Harvey Oswald, using the alias "A. Hidell", purchased a 6.5 mm Carcano-type Model 91/38 rifle (also improperly called Mannlicher-Carcano) by mail order. He also purchased a revolver from a different company, by the same method. It is officially accepted that this was the rifle that was used in the Texas School Book Depository in Dallas, Texas to assassinate United States President John F. Kennedy as his motorcade drove by on November 22, 1963. Photographs of Oswald holding the rifle, a palmprint found upon examination of the rifle, and detective work tracing its sale, all eventually led to Oswald. The so-called Model 91 bolt action rifle had been introduced in 1891 by Salvatore Carcano for the Turin Army Arsenal. After 1895, the Modello 91 used an en bloc ammunition clip similar to (but not identical) to the Austrian Mannlicher ammunition clips, and hence the names of Carcano and Mannlicher associated with the Oswald rifle.