I have a bunch of Flues model Ithaca's.
It's worth 400$ on a great day.
They made 100's of thousands of them.

See the shrunken stock head?
Break that corner off shooting modern loads and it's worth 200 or less.
There is no great way to tighten that gap. It is the bane of the Flues' model.
If the drop at heel is 3" plus, few can shoot it as is.

Cleaning off the gunk takes a trip to a sonic cleaner. Scrubbing the patination off with wire wool just makes your 400 into 350

The wiggly engraving around the barrels is a decent indicator of which Flues iteration you have.
The Krupp barrel stamp, as opposed to "Smokeless Powder Steel" marking, is less commonly seen.
The gun linked to has twist barrels, so is not the same as yours.

Yours is worth slightly more than your average 1.5 model due to barrels and originality. Scrubbing it lowers that originality premium.

You can look at completed auctions online to see what guns engraved like yours actually sold to people for.


Out there doing it best I can.