Thirty-three books primarily related to antique/early U.S. military arms. Some titles to include: "The Northern Armory: The United States Armory at Springfield, Massachusetts, 1795-1859" by Daniel D. Hartzler and James B. Whisker, "Sharps Firearms" by Frank Sellers, "Dance & Brothers: Texas Gunmakers of the Confederacy" by Gary Wiggins, and "American Military Shoulder Arms" Volume 1 by George D. Moller.