This pistol was produced in 2001 by Colt's Custom Shop and was released to the civilian market. It was a reproduction of a parkerized WWII USGI M1911A1 Pistol. Close to 4,000 units would be produced before production ended in December of 2002.
These pistols are parkererized with plastic stocks. It features a W.B. inspectors stamp on the left side below the slide stop which would be similar to what is found on a 1942 production M1911A1. The serial number has the prefix of "WK"