I am trying to value my Firearms to list current values for my wife. I want her to use these values as an estimate should I pass and if she needs to sell them. Of course I know something is only worth what a buyer will pay but I am only looking for a guide. The one in question today is a blued Model 29-2 with a serial number that puts it late 1966 to early 1967. It has a 4" barrel and smooth target grips. The finish is about 95%. Mechanically it is perfect. I do not have the box for it. Any ideas?