Approximately 75 books mostly related to firearms and edge weapons such as Riling's "The Powder Flask Book", Mathews' "Firearms Identification" Vol. I & II, Sellers' "American Gunsmiths", Rattenbury's "Packing Iron", Olson's "Mauser Bolt Rifles", Ball's "Mauser Military Rifles of the World", Cole's "U.S. Military Knives", Angolia's "Daggers, Bayonets & Fighting Knives of Hitler's Germany", Reilly's "American Socket Bayonets and Scabbards".