They were the only rifle to my understanding made in the state of Maine. Lever action loads through the butt into an Archimedes screw magazine. You keep loading and advancing the cartridges until the magazine is full and the next lever stroke loads the chamber. Then you fire til empty. Very ackward to load if gun is not empty. A few years ago Tom Sellack and Wilford Brimley made a western and a 44 Evans was what Wilford was using in the movie. I only ever saw another one at an auction it was in nicer condition than mine but I didn't need another one
Bizarre as they look, a not insignificant number of them were produced. You used to see at least one in every big show in the East. Scott Jamieson was writing a book on them a few yrs ago, but I don't know if its been published. If so, it's worth buying, as his book on Bullard rifles is one of the best gun-books I've ever read.