Stan's gun is a G.S. Lewis patent action as made by J. Stevens Arms Co. As a Stevens it was the No. 330, as a Riverside Arms Co. or later a Springfield Arms Co. it was the No. 315. Then in 1929 they introduced the even plainer Springfield No. 311 with a "walnut finish" stock. All of these variations were also made under a number of "trade brands." In the late 1930s or early 40s some of these actions may have been marked as Crescents after the remains of Savage's short-lived Crescent - Davis Arms Corp. were brought to the J. Stevens factories at Chicopee Falls.
Iver Johnson doubles had internal hammers that rotated about an axle.
Early on they had false sideplates and mono-bloc barrels --
Those patent dates refer to W.O. Barnes' Patent No. 1,131,984 granted March 16, 1915, and Patent No. 1,137,045 granted Apr. 27, 1915.
At some point, for sure by 1921, the earliest IJ catalogue I have, they eliminated the false sideplates --
At some point during the 1920s they dropped the mono-bloc and went to chopper-lump barrels as J. Stevens Arms & Tool Co. had done more than a decade earlier.
