Interesting things going on at Savage Arms Corp. in the later 1930s. For 1937, Savage introduced a line of hammerless break-action guns -- the Model 220 single barrel, the Model 320 side-by-side double --
Model 320, January 2, 1937.jpeg
and the Model 420/430 over/under double.
Over-unders 1937 catalog.jpg
Meanwhile Savage Arms Corp.'s wholly owned subsidiary, J. Stevens Arms Co., had introduced a new design of hammerless double replacing their G.S. Lewis "striker" fired J. Stevens No. 330 and Springfield No. 315 with the J. Stevens No. 530 and the Springfield No. 515.
Apparently, someone saw the light and very few Savage Model 320s ever saw the light of day and was gone by the 1938 catalog. Savage then took the internal parts of the J. Stevens No. 530, stuck them in a slightly nicer profiled and decorated frame and added this insert to their 1939 A.H. Fox catalogs --
1939 Flyer introducing Model B.jpg
Hybrid Mode