So a friend of my brother's boss just passed away and he had some old guns that the family is trying to sell. One of them is a colt 1911 stamped United States property. I looked up the serial number on the colt website and it shows a mfr date of 1941. It looks to be in fair shape with some possible rust and a little pitting on the slide. The grips look to be wood and are smooth and look like they may have minor cracks. I want to make a fair offer and not rip her off but still want to get it at a good price. What is the usual value range on these types of guns? I am going to try to check it out in person this weekend to evaluate the bore etc.