In June of 2022 our museum began to look more into a rifle in our collection known as a Colt Automatic Machine Rifle R80. Better known as a Colt Monitor. The rifle was claimed to be owned by Frank Hamer; a retired Texas Ranger who is well known for the pursuit of the Barrow Gang (“Bonnie and Clyde”). The original objective of this was to find more information on the history of this rifle but it developed into a three-month investigation into the history of these rifles and a goal to find how many are still in existence.