Look what one of my "Lads" has just sent me!
It must be over 50 years, since I last saw one. When I first started work.

Lovely condition, except for some
spark erosion, on one corner........

Wonder where it's been all these years......

It doesn't have a dial. So, I guess it's a ti! Can't find anything on Google.
Anyone else ever come across one?
David D