The value of Mosins, has dropped, since the availability of cheap surplus ammunition ended. The rifles, on dealers shelves and on the internet has fallen from an average of $225 for a laminated stock, to about $190. Also a continuing steady stream of new imports has pretty much saturated the market, in tough economic times.
That doesn't mean they won't hold their value now but, it is a bit of a kick in the pants for some here that expected prices to continue to rise. This hasn't just effected Mosin Nagants. You can see it across the spectrum.
Your Finn, may be an exception. It is a desirable collectors piece, rather than just a shooter.
There are others here far more qualified than I to give you a price on that rifle. I still have my mind set on 25 years ago, when you couldn't give a Mosin Nagant away, unless it was almost pristine. Even then, they sold for cheap. I was just looking at a 1994 International Firearms Co catalogue, Finnish Mosins, 91/30 were selling for 39.95 in very good condition. For another $10, they would hand pick them for you. The M27, brought a substantially higher price, $69.95 and the hand picked rifles, with matching serial numbers, ran $15 more. New in grease M44s, $119.95. The problem was, lack of ammunition. In the early 90s, surplus ammuntion started to dry up. There was also another huge influx of rifles. South American Mausers, Lee Enfields etc.
Right now, we are at a bit of a saturation point again, concerning just about all milsurps. While not pervasively plentiful, they are commanding high prices. That's changing though. It wasn't all that long ago that a good only No4 MkI variant would bring $350, now that rifle will languish for a long time. I notice it's taking a long time for dealers, to sell off their stock of milsurps as well. Don't get me wrong, the market isn't over, the frenzy is though, for now.
Price is relavent to desirability. That particular Finn, should command a premium price. Maybe as much as $400. IMHO. I am probably out to lunch on that figure as well but then, as I stated before IMHO.