Does the gun have a rib? A prewar ribless Lightning would be well worth that money if the barrel condition is excellent. Any prewar Super in clean original condition should be worth that price. Some prewar Lightnings have ribs. The way to tell whether it is a Lightning is the weight. The prewar version of the Lightning is much lighter than the postwar version. If your gun is a ribless Lightning, it should weigh around 6 1/2 pounds. With a rib, it will still be well under 7. A Standard Weight will be 7 1/4 to 7 1/2 pounds in the same configurations. It probably has the second generation single trigger with the selector made as part of the safety. Some of these 10,000 series guns were not shipped until 1940 or later. Post some pictures so we can see what your 85% looks like.
