Hafner 1010 (1010 being the address of Hafner's Chicago factory). These where made from the 1930s to well within the 1950s. Marx produced a version of it in the 1960s. The clockwork motor still works fine. These are very common in the US, not seen many in the UK but apparently Lionel exported these in favour of their own brand trains?
Hafner 1010, pressed steel survivor fresh from the barn
@10red80added June 19, 2018