Picked her up this evening, and am going to spend the night pouring on some tlc (she's dry as a bone, ignored, and lonely)... Pics to come!
By the way, the serial is 550,0xx and from the website, it looks like its an original 1918 to 1919 piece.
Colt: S/N 450,000 to 629,500 = Oct. 24, 1918 to April 10, 1919
(From
Colt 1911 .45 ACP Production Statistics and Serial Numbers)
Trying to figure out how to post pics.......