I think I have the same radio, how many radios have a dial glass that “sits on top” it is etched glass so perhaps a glass shop could re-create one somehow or you could try your hand at making a mask and etching a piece of glass. I’ve only seen one other like it out west and it was pretty far gone and was in an antique shop ,they likely sold it years ago.
I also have a somewhat similar model that I am saving for parts. does yours have two eye tubes? any idea why two were used?