I had a sale at my Uncle Chase's gun room. His Pre-64 Model 70 rifles brought Top dollar. We advertised all his guns in the local paper near Pocatello, Idaho and the sale lasted 4 days. We had over 300 1911's alone. All Colt's US property marked, Navy models. It all depends WHO is at the auction, and how well the guns are advertised. One item was a Brass Maxim machine gun that brought 6 figures!