While Union General McClellan was moving his forces towards Manassas and the first battle of Bull Run, this revolver was given to a Union Cavalry commander near the front lines of the conflict. Just a couple of miles from the National Firearms Museum, Fairfax Courthouse was the primary town municipal building and is still standing today. Many Union officers chose the small S&W .22 revolvers as pocket pistols. While offering seven shots, the lightly-powered .22 cartridges were not well suited to personal defense. The Smith & Wesson Revolver can be found in Gallery 5, A Prospering New Republic, at the NRA National Firearms Museum in Fairfax, Virginia.