Vintage Hall-Scott railcar engine. 1:38 video.
https://www.youtube.com/watch?v=ws93EOGcKko
Previously:
https://www.homemadetools.net/forum/...489#post177766
https://www.homemadetools.net/forum/...472#post151101
https://www.homemadetools.net/forum/...782#post159838
https://www.homemadetools.net/forum/...985#post144936
https://www.homemadetools.net/forum/...631#post159237
