Artemus Wheeler Carbine
Artemus Wheeler patented his new firearm in 1818. His invention was the first revolving firearm to receive government trials (1820), and the first accepted by the military. The Navy purchase two carbine and two musket versions in 1821 to use as boarding weapons.
The carbine shown here is a flint lock, automatic priming(a small amount of primer powder was scraped into the pan as the cylinder was revolved) .45 caliber.