I'm looking at a WWI vintage 1918 Colt 1911 for sale. Serial number 233xxx. It's in fine - very good shape. Everything appears correct except for the grip panels and it's missing the magazine. Both of these I should be able to replace. It has GHS monogram, and from Poyer's and Clawson's books, the GHS final inspection mark occurred up to around serial number 230,000. Does anyone have a GHS marked 1911 in this range of 233xxx? I'm guessing there must have been some overlap by a few thousand plus or minus. But I'm just checking to make sure!