That gun not only has the A&D patents but also the C-bolt. As I said in my first post, I do not believe anyone but WR built guns on the C-bolt top lever platform. I could be mistaken on that point but I do not think so. My guess, at a minimum the barreled action was built up by WR, possibly the whole gun and simply branded Hollis.
You might be correct. A good example of this theory would be guns made by Scott for virtually every retailer and gunmaker that were built on Scott-Baker and Scott-Perkes patent actions. Nobody but Scott built those actions. Whether Scott sent them to gunmakers or retailers as completed guns or guns in the White is entirely a different subject. That really is the only question though.
Mr. Barclay has some really good insight on this topic on his excellent webpage on J. Blanch guns.
Talking with various English gunmakers over the last decade and a half has also led me to this very conclusion as well.