I just bought this one, primarily because I liked that it is marked for an American retailer, but I also liked the nice Liverpool windows and overall look. It was not running and was missing the hour hand and crystal, but it looked clean inside and I took a chance. It turned out to just need some oil (and a cleaning eventually) and demagnetizing. I was fortunate to have a matching hour hand and the exact bullseye crystal! (The hands still need straightening, but I am being cautious with them). The name on the movement is J.K. Fellows & Co. in Lowell [Massachusetts]. It has a table roller escapement. What do you suppose the "WARRANTED" marking on the dust cap refers to? The sterling case has a London hallmark for 1847 and maker's mark for Ralph Samuel (RS in an oval). Samuel was located in Liverpool, and the movement, too, has a Liverpool look to me. James Knowlton Fellows was a silversmith and jeweler in Lowell from 1832 until at least 1860 under various partnerships, but used "J.K. Fellows & Co." from 1845 to 1855.