:hi:
Hi and welcome to the gmb Chris - you're not intruding at all.
I'm clueless about cut stuff, but a good clear image of the base always helps identification, and your location on the planet is often a good place to start a search.
Are you sure there are no marks, however faint, on or around the base? They can be really difficult to find sometimes.
A tiny bit of talcum powder rubbed over a mark can bring it up beautifully (and it comes off).