What is a Stevens 4.10 gauge by savage arms worth?

Depends on it's condition. Stevens is antique and no-longer in business Stevens Arms was an American firearms manufacturer founded by Joshua Stevens in 1864. The company introduced the .22 Long Rifle round and made a number of rifle, shotgun, and target pistol designs before being bought by Savage Arms in 1920. After 1920, Stevens made training rifles and machine-guns for the US Military. Savage stopped using the Stevens brand by 1950. (wiki)