Griffin & Howe scope mount on M70 & M74 ??|Winchester Sights|Forum|Winchester Collector

😀 I recently purchased a pair of Winchester rifles which are set up to share the same scope. The detachable part of the Griffin & Howe mount is movable from a 1940 Model 70 to a 1949 Model 74. The serial #’s for both rifles are nicely stamped on the movable portion. The older gentleman I bought this from said the scope would then be sited correctly for either rifle. Workmanship is excellent and both rifles are in 98-99% condition. Inlet into the bottom of both stocks is a round brass plate with a large "S" and the inscription Seabrook N.J.

There is a town of Seabrook N.J. but this would appear to be the logo of the gunsmith who did this interesting scope mounting work.

Can anyone shed any light on this pair of winchesters and or the gunsmith?