Here's another image I have in my files. It shows two men bathing and apparently having a conversation, using a rod to support themselves (for comfort, I assume):
Image credit: Walters Digital Library W.88
If you attached the log differently, with the upright support stakes partway in, instead of at the ends, it might look a bit like the VMS drawing.
Image credit: Walters Digital Library W.88
If you attached the log differently, with the upright support stakes partway in, instead of at the ends, it might look a bit like the VMS drawing.