[Arran]

I am down in Providence. It occurs to me that your radio may have been in a place where it was in an environment where moisture condensed on the back of the glass, causing the decal to slide and separate a bit. I am not sure, but I believe they make decals to re-do these glasses. Radio-Daze has the whole dial but it is on plastic. I don't know if they sell the decal to re-do your glass yourself, but it might be worth asking. Here is the link to that dial... http://www.radiodaze.com/philco-40-150-155-180-185-190/

Actually Radio Daze is back into making glass dials again, I was looking for one for a Canadian RCA set a friend had and when I inquired they said that they were printed on glass with some sort of new process.

http://www.radiodaze.com/dials/

Regards
Arran