I’ve lost the little orange indicator glass, as shown in the attached photo. I had saved it, (I’ve still got the thin metal cover plate safe), but it went walkabout, must have been during house move back in 2008, see photo. In hindsight I should have just glued them both back in place, and been done with it.
I can get a complete replica version of the box, but is there anywhere I can get just that little orange lens?