But as is the case now, in our unbelieveably small world, I have already found the manufacturer(LUXO) that is till in operation(unbelieveable) and they have a parts service with pictures(even more unbelievable). After just a few minutes trawling their site I found the parts that will hopefully get the old girl back on her feet.I have it ordered and paid for in about 5 minutes. It has taken longer to write about it.
I guess the only other down side to this is realizing you cant see unless the surface is illuminated. I think I am getting old.(get's monocle out of vest pocket, cleans with handkechief and places jauntily in right eye socket) That's better old boy.