Suspect reworking the Kersten style bolting system would be the 'fix' IF it ever shot loose. The unique hinge leads me to believe it was a prototype. It may never have been proofed since it wasn't made for commercial sale. Perhaps the inventor/makers personal gun.

Interesting and unique. I'd like to hear the rest of the story if it could ever be discovered...


"The price of good shotgunnery is constant practice" - Fred Kimble