Ancient clamp

[Valery_V (imported)]

Snapshot of the book page I mentioned (https://64.media.tumblr.com/5afd4e93e03 ... f0f731.jpg). Not much to say about it.

Thank you very much for a clear and complete explanation! I figured out how this tool was used. Now I know for sure that I will never be able to use it, since I do not have the part that needs to be inserted into the corresponding round hole of this tool .

[eunuchorn3 (imported)]

I remember seeing a box like affair but I never found out what it was called or how it was used.