13: Colt MKIV Series 70 Government Model Nickel Finish in 45 ACP with 5" Barrel. This semi-auto pistol features a nice nickel finish, one correct Colt magazine, checkered walnut grips and and fixed sights. The gun was manufactured in 1982 and is in exceptional condition. Pictures of this nickel gun do not do it justice. Nice collectible piece here. Estimated Value: Low: $1,700 High: $2,000