OK gang, re: ports on the top of the skulls, I put this image together (work in progress and can totally be altered) to try and gather images of items that are either confirmed to be the genuine screen used article, or highly likely to have been used in the filming/production where these elements can be seen as clearly as possible. Some screen grabs from the films, some behind the scenes photos, some some are photos of what's been seen out there in the wild today. Of all these items, the Bob Burns is the one I'm most concerned about, but it's in there for now because I had access to it and took clear photos of this particular area. As I said before, it's likely connected to a film skull/mold from T1 or T2.
View attachment 1693916
Enjoy,
-Dana