Finally found the info on the 425 I saw at the auction - serial 1842. The pictures are gone but the info still comes up at least for now Rock Island Auction
This is the one with the early carrier that looks like the one in this patent - looking at the patent again I now realize the piece I thought was part of the carrier is actually on the loading gate. 425 patent That piece just flips up with the carrier to keep the shell from falling out.
You will notice that this patent was granted before the other one but if you read the text it is just for a modification and not for the firearm. G. S. Lewis had a lot of patents for Stevens and seemed to do a lot of the final design refinements.
