This is interesting: the Richmond Fed owns two vintage Thompson submachine gun, aka Tommy Guns.
“U.S. General John T. Thompson developed this iconic firearm in 1919,” wrote the Fed in a blog post. “It eventually went into full production in the 1920s and became a favourite weapon of the military and law enforcement groups throughout the United States. The Federal Reserve Bank of Richmond’s Law Enforcement Unit still possesses two vintage “Tommy” guns.”
And here’s a guy blasting away on a ‘Tommy’ gun in real life: