An image of the gun, owned by O'Neil's family, will be projected on a screen at auction because Chicago bans handguns and automatic weapons within city limits. Anyone who wants to view the gun must go to Shore Galleries at 2218 W. Devon in Lincolnwood, where it is stored. Potential bidders must comply with state and federal gun laws.
A Colt Army Special revolver used by East Chicago, Ind., police Capt. Timothy A. O'Neil (inset) to fatally shoot John Dillinger is going up for auction next month.