Hello all and thanks again for solving my recent problems - Here's my latest query - I found this large green plate at the bottom of a box and it is Uranium with High Dioxide as it lights up really easy under UV - the bedading is on the underside and there is a raised oval collar style base . The matching central section on the top side is slightly domed and looks like something would have stood in it.
I have not seen anything like this before and would love to know its origins - I was thinking it was maybe greener or one of the other Older British Makes but thats purely a guess based on the beading aspect - love to ehar from anyone. It is 12½ inches across the widest point - Thanks anyone for any info. Markus