I received my beautiful copies of the Schumway Books Vol 1 and 2.
Still very curious on the Dickert Rifle - I can look at the pre restored photos and see the Frizzen, Frizzen Spring, Frizzen screw, and Cock are not what is in the book prior to restoration. Neither are the double set triggers. The Shumway book shows a single trigger.
The closer I look, the lock looks completely different, as the pan is 100% different for sure.
So yes this rifle led one hard, hard life. Basically nothing is original but The Butt stock, Patch Box, and barrel (if that's 100%) - another Dickert is on another auction is being described as having 12 inches of forestock and barrel replaced (they did confirm for me). Estimates on that one reflect it. I would assume this gun to be obvious to such a modification/restoration.
Not one I will be bidding on but a Dickert is on the radar for the future. I will say the J.P. Beck in the RI auction is a handsome gun - though smooth bore (maybe not to some's liking).