Someone will pay a lot of money for this gun, which Capone probably never carried. Why would he? He was never a hitman during his career. There's no record of his being in a gunfight, or of killing someone with a firearm. As boss, he was surrounded by bodyguards, and he knew that if he carried, any cop could have arrested him and send him away without any further ado--unless he wanted to be sent away. That's exactly what happened in Philadelphia on May 17, 1929, after the famous gangster convention in Atlantic City, when some of his fellow pezzanovanti "suggested" that he step down to relieve some of the heat generated by the St. Valentine's Day Massacre and other violence in Chicago.
Here's a link to Capone's deluxe cell in Eastern State Prison, where he spent nine months after a concealed carry arrest he engineered Not exactly hard time:
https://www.smithsonianmag.com/smar...te-roommates-cot-opens-public-180972105/