The Galleries
- Robert E. Petersen Collection
- Ancient Firearms
- The Road to American Liberty
- Seeds of Greatness
- The Prospering New Republic
- A Nation Asunder
- The American West
- Innovation, Oddities and Competition
- Theodore Roosevelt, Elegant Arms
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond
- For the Fun of It
- Firearms Traditions for Today
- William B. Ruger Special Exhibits
- Freedom's Doorway
Pennsylvania Rifle Works (Philadelphia, PA) Percussion Over-Under Combination Gun
Many combination guns were made with swivel barrels that allowed a choice of calibers. This engraved gun features a swivel breech and a back-action percussion lock.