What is the value of a Savage over-under shotgun - 20 gauge 22 Long 24S made in Westfield Massachusetts by Savage Arms?

depending on condition and collectibility it should fetch between 200 and 400$ More than likely your looking at 250 - 300$. The newer Savage 24s made with tenlite(?) plastic type stocks are condsidered to be of lesser quality than the older wood stocks from the 60's and 70's. I would suggest looking on gunbroker dot com and seeing what similar type 24's are selling for. The Savage 24 has quite a following and is becoming increasingly hard to find, I wouldn't trade mine for anything.