Railroad handcar.
https://s3-us-west-1.amazonaws.com/h...ad_handcar.jpg
Previously:
https://www.homemadetools.net/forum/...646#post104908
https://www.homemadetools.net/forum/...608#post159136
https://www.homemadetools.net/forum/...229#post145964
https://www.homemadetools.net/forum/...976#post137677
https://www.homemadetools.net/forum/...634#post128521