The axe thing was a term coined by Mark, before he found out the proper name.
When I started collecting Mdina, there was virtually no info. about it at all, and when discussing things with other folk who were interested (quite often just with my brother) I coined a few terms myself - just to be able to describe the glass so we knew we were talking about the same thing.
Once Mark started working on the book, in consultation with Elizabeth and Tim, the proper terms were learned and we are now still working to rid the "vocabulary" of wrong terms.
The axe thing needs buried! :smg: