Hi I recently purchased a Colt D.S. which was converted at some point from a P.P.S. It now has a ramped barrel and the checkered wood grips with the Colt medallion. The barrel I believe is from the period right after WWII and the grips look like they are from 1st issue. The bottom of the barrel, the cylinder and the bottom inside of the grip frame all have the number 828 stamped on them (gun serial no. 40,XXX). My ques. is, was this gun a redo at the colt factory? I checked with Paul at Colt archives and he didn't have any records of that happening. Thanks, flugeldan