The next big piece of the puzzle has arrived this afternoon, thanks to another MLU member.
It is very exciting to finally have one of these in my hands. I'm not sure if I will sleep well tonight because it has arrived, or if I won't sleep at all because I've got it to start playing with.

The very bottom has suffered from considerable exposure to water at some point in it's long life, but fortunately the shape of the corrosion has left good perch for me to graft a replacement section on the undamaged casting. I think I'm up to the challenge. Quite looking forward to taking on that task. Very grateful the corrosion has not travelled as far as the clinometer mounting. Replicating that would be a cow of a job.

I couldn't resist placing my dial sight carrier where it needs to be. It will look real good, when attached permanently, and won't require a nikko pen to hold it in place!
Rob N, email coming your way real soon.