Thanks for that helpful information, doublebuck and hamgunner. I'll have to look into that violet flame but. I found Waltham Abbeys book on Amazon. Is it this one?
I would think it would be available somewhere on the web for free. I'll look for it.
https://www.amazon.com/Handbook-Manu...93622951&psc=1
Edit: of course it is! The full book is available in pdf form through Google books sometimes, the internet is great