I bought a bunch of N scale stuff yesterday at a local thrift shop. Some of it is fairly old, like this loco, some other stuff is a lot newer. Right now I'm having trouble trying to find what this UP loco is and how old it is. It is an Atlas and I'm guessing at least 10, maybe 20 years, but I really don't know. It runs fine, but it is missing a handrail on the other side. Anybody know what model it is? How old?