going to say it all comes down to who wants it and why, I have seen them sell for as low as 400 and as high as over 1500, some things depend on specific's of gun, what barrel and stock is on it
hard to tell from a picture, but these stocks don;t seem to match very well, NOT that uncommon as Ithaca had its issue's with things over the yrs
but they did come in a few versions,
and like most things for sale, alot comes down to how bad the seller needs $$$ or has time to wait for that special buyer that will pay the most!
I can also tell you they were very well known for being terribly unreliable guns, so, that doesn't help on finding buyers
but there are folks that collect everything and to them, needing this, the price they will pay can be high I am sure!