The auction says they are "MDC" cars. I don't know what that means. Is that a brand name?
At any rate, they looked great, so I went and bought them. My issue is that I decided to model late 19th and early 20th century railroading. The problem with that is that there isn't very much available. Roundhouse had some good stuff in the 2004 Walthers catalog, but they were bought up by Horizon (aka Athearn), and when you go to their website, none of the "old time" stuff is available yet. (?)
Evidently, not many people model the early stuff. I live in Boston, where you can't throw a rock without hitting a LHS, but none of them carry much in N. Even Charles RO in Malden, "the largest train store in America", only has a small corner devoted to my scale, and it's all modern stuff.