Where is this hollow coming from No, none of them are ever hollow (found hundreds), the black dot in the book is iron. If the posters is hollow, then I'm completely wrong.
Wow,
I have been a way for a bit and didn't realize this artifact was getting so much attention.
It is not hollow. Solid for sure.
The large end has rusted off, so it most likely was threads. I believe it to be a clothes hook after seeing the images. Sorry to all that I have not been active in the research.