I am looking at a 1917 made 1911. It has the U.S. property marks. It's probably 70-80% condition with original finish. The seller said it was used in ww1,ww2, and I think Vietnam nam, though I don't know if he prove his. Any input would help, this colt bug has got me and I am worried about buying before I learn more but don't want to miss an opportunity either. Thanks, Steven