A specially engraved Colt 1911 celebrating the 100th anniversary of the sidearm and featuring the Serial Number 1911COLT2011 is being featured as the SHOT Show 2011 auction gun, according to the SHOT Show's blog .
The auction, which is hosted at GunBroker.com , is open for bidding and will close at 1 p.m. on Jan. 21. The current high bid (Dec. 29) for the gun that will only be produced as a single firearm is more than $70,000.