Remington Model 31

Can anyone help me with the value of a Remington Model 31? The serial number on the barrel portion has a CL and what looks like an anchor after it. It was left to me and has a lot of rust on it because it was simply thrown in an attic for 20 years.

hello,,thats a shame the md 31 shotgun should value between 200 fair-275good ,,depending how bad the rust is could hurt the value a little,,if the rust isn't real deep then try some 000 or 0000 steelwool with some light household oil and see if ya can clean it up some ,,it will help the sale when ya go to sell it,,
bigcurt