1926 Vickers medium tank.
https://s3-us-west-1.amazonaws.com/h...k_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...520#post162441
https://www.homemadetools.net/forum/...417#post162007
https://www.homemadetools.net/forum/...722#post174774
https://www.homemadetools.net/forum/...999#post164509
https://www.homemadetools.net/forum/...598#post143269
https://www.homemadetools.net/forum/...609#post174307