Well how about that - looks like it's already being taken care of - great stuff! I wonder if anyone has thought to go through the process of applying for some kind of protection order for all trig points to have them designated at historic monuments. I know the history is relatively recent, but it is unique and a physical record of where we have come from with mapping and navigation. Perhaps those who run the Trigpointing UK site will know? I think I'll email them to find out.