Teardown work on a brass two-unit electric boxcab is about as delicate as this hobby gets, and the maker clearly handled it with care. Taking one of these apart, getting lubrication into the right spots, and putting it all back together without losing anything is the kind of job that would make me sweat, and the result speaks for itself: the locomotive is running smooth again.
The build itself is a brass-constructed, two-unit electric boxcab-style model locomotive, and the detail work on it is lovely. There are rivets worked in across the body, equipment on the roof, side windows, and connecting side rods on the drive wheels that get their proper moment as things turn. To my eye, the side rods are the standout, since they give the drive wheels something mechanical to show off rather than just spinning behind blank frames.
Right now the locomotive is waiting for its turn in the paint booth, which is the one open item left. Watching it glide along the track from right to left across the frame, bare brass and all, it already reads as a handsome piece, so the finish should only add to it. A genuinely satisfying revival to follow.