If your buddy's name is Robert Azar then maybe he has Colt 1911 serial number 9.
After reading this thread I thought the "9" sounded vaguely familiar...
I dug through some of my 1911 reference material. So, now, just looking at a copy of Guns & Ammo special edition of "Book of the 1911" [this particular version published 2003] On page Page 6/7 an article written by Wiley Clapp, titled "The Government Model: A Distinguished History - How the Greatest Pistol Ever Made Came to Be", with photos by Ichiro Nagata, shows two pistols: Colt Model 1911 US Army and what appears to be a Colt Government Model [ie commercial] but in the pic is labelled "Model 1911 Special Army", 1 of 15 made. Both pistols with the serial number 9 [that can be clearly seen on each pistol in the glossy pics]. The article states that these two pistols and the 17 other 1911's depicted in the article [including some other rare pieces, including John Browning's personal prototype Colt Model 1910, serial number 3] are from the collection of a Mr. Robert Azar.
So.... does your buddy have pics of his $300 auction find?
NAA.