- Robert E. Petersen Collection
- Ancient Firearms - 1350 to 1700
- Road to American Liberty - 1700 to 1780
- A Prospering New Republic - 1780 to 1860
- The American West - 1850 to 1900
- Innovation, Oddities and Competition
- Theodore Roosevelt and Elegant Arms - 1880s to 1920s
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond - 1940 to Present
- For the Fun of It
- Modern Firearms - 1950 to Present
- Hollywood Guns
- A Nation Asunder - 1861 to 1865
Sawed-off Double-Barrel Shotgun (deactivated)
This gun was used in a number of gangland murders in Detroit, Highland Park, and Wayne County, Michigan. The barrels on this short-barreled shotgun were cut and sectionalized to ensure it could not ever be fired again when it was placed in a law enforcement collection.
Framed text accompanying this donation reads, "Grosse Pointe Farms, Michigan Sept. 30, 1936 This gun was used in quite a number of killings here in Wayne County, Michigan by the old Gianolla gang. A man by the name of Bigliotti from St. Louis used this gun. He was the trigger man for this gang. It was used in the Ford Massacre near Wyandotte, Mich. The last man this gun killed was Emmanuel Rogerio at the corner of 12st St. and Eason Ave in the city of Highland Park, Mich. I got this gun from the Homicide Office of the Detroit Police. (Signed) Louis Wisser"