PhysDoc,
My thoughts on S Man are not based on Petrov’s work as hadn’t read his work until after I saw his collection at Amoskeag.
When I first saw the S Man rifle it reminded me of two rifles I briefly saw in a collection in Lake Forest, IL about 20 years earlier. The owner stated that they had been redone by the Marshall Fields shop.
When I mentioned it to gasgunner he said Petrov had thought that S Man may have been in the Chicago/Milwaukee area.
That is interesting, I googled and found a facebook group, they posted an ad from 1935 announcing the opening of the gunshop in Marshall Field and it was being headed by a famous gunsmith. Whereas
I believe the S-Man rifles were all very early sporters, maybe the "famous gunsmith" is the one that made them. I am not on facebook, but maybe someone on that group can tell us who the gunsmith or
gunsmiths working there were.
Marshall Field facebook group