[Arran]

Ron;
  Regarding the paint on the dial glass, you are fortunate that the glass has etched to accommodate the lettering and numbers as that actually makes it easier to restore. Someone on the alternative forum, Tom Albrecht I think, restored the letter on an etched dial with spray paint and one of those razor blade scrapers, but one could probably do the same with an artist's brush since the paint will collect in the etched numbers. This seems to have been the preferred technique for creating glass dials in the 1930s, I have had G.E's, RCAs, and a few Rogers built sets that had dials like that, I'm not sure if it was because they wanted the artwork to have some depth or because they did not trust the paints they had on hand to stay put without baking it on.
Regards
Arran