That appears to be a late transitional HD. If the stocks number to the gun I would think it has decent collector value(I am not an expert). I would say with numbered stocks- $800 at least. Shoot a pm to dc wilson and or 1aspenhill for some honest expert advise on a fair price. It's a great looking gun and I don't think you will have any trouble selling it here. I also am of the strong opinion that it should finance a good quality modern .357 (586, 686, mod 19)with room to spare.