Thanks very much for the information. I think it is a model 99F; pressed checkering, aluminum butt plate, gold trigger, engine-turned (jeweled) bolt, and does not have a Monte Carlo stock or white line spacers. Someone has added a sling swivel to the butt stock and another to the barrel. It's used but still has a lot of case color on the lever and the blue looks pretty good, too.

Thanks again! I wish there was a good listing of serial numbers and dates...