Welp..there you go..sounds like there were no rotating tools involved whatsoever.
What you describe sounds like a modified planer using a single point swaging tool..interesting..have a link to photos/video?
I'd like to see that.
This somewhat jives w/my guess that it was rolled in the sense that the material was displaced.
All that said..you're now describing equipment that is not widely used today as compared to yesteryear.
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