Al Capone's Colt .25-caliber semi-automatic vest pocket pistol will be among the items included in the 'American Gangsters, Outlaws and Lawman' sale organised by RR Auctions, the Daily Mail reported.
Capone, a crime boss who smuggled alcohol throughout the US during the Prohibition-era, had given the gun to one of his bootleggers for personal protection.
The piece is estimated to sell from USD 10,000 to USD 15,000 at the live auction, that will be held on September 30 in Nashua, New Hampshire.
Other items in the RR Auctions sale will include Capone's deposition after an assassination attempt on Capone's mentor Johnny Torrio in 1925.
He and Torrio were leaders of a Chicago gang, embroiled in a turf battle with rival gangs.
In the 50-page document Chicago police interrogated Capone about his whereabouts during the shooting.
The deposition could be sold for up to USD 100,000, the organisers expect.
"The historic significance of these signed documents cannot be understated, especially given the subject matter at hand and at such a critical time responsible for Capone's ascension as Chicago's undisputed crime boss," Bobby Livingston was quoted as saying by the paper.
Additionally, interested buyers can bid on a handwritten musical score written by an imprisoned Capone, titled 'Madonna Mia'.
The love song was written about his wife, Mae, while he was incarcerated at the infamous Alcatraz federal prison, in San Francisco in the 1930s.
In 2011, another firearm belonging to Capone had yielded an eye-popping offer at an auction.
Capone's Colt .38, that came with a letter signed by Capone's sister-in-law confirming its authenticity, sold for over USD 1,00,000 at a Christie's sale in London.
