My grandfather passed two years ago and recently my father came back from Washington state with my grandfathers standard issue military 1911 .45 pistol. I took the gun to my local gun shop and I had the gunsmith take a look at the gun. After he told me that it was in perfect shape and I shot it a few times he informed me that the gun was a WW I standard issue that was refurbished and put back into use in WW II. That is when my grandfather used it. Is this possible or true? I dont have the gun on me but I would be able to provide serial numbers if that helps. And is there a value anyone can put on it?