[Wishiknewmore]

Thank you everyone, Yes it certainly looks like a Ruhmkorff induction coil, so far I have resisted the urge to take the screws out of the bottom as I have too too many things in bits at the moment, But I think it has earned it place for a bit of restoration and a search for a suitable terminal for the one that is missing.
I never cease to be amazed at the knowledge and help on this forum.
I may be coming back for advice on rewinding the coil!
many many thanks again
Philip