The Sterling Model G is a 1000 shot, spring-piston, lever action BB rifle with an octagon barrel tube. This one is is marked “Upton Machine Co. ST. Joseph Mich, USA” which dates this gun circa 1891 to 1928. Note: The name “American Tool Works” is not on this gun, and we don’t have information specific to the variant marked “Upton” which this one is.
The stock has been refinished and its really hard describe the state of the original blued finish. This gun is in about 60%, maybe better original condition.
This gun does not shoot. Its being sold strictly for its value as a collectable airgun. Sold “AS IS” with no returns.