A paint scraper, a brass scrubber, some steel wool, windex and some paper towels.
Notice the beautiful floor tiles.
Here you can see the effect from the reverse side, from inside the washroom, while exiting.
Change number three, no stars on the doors. Based on how things turned out, we decided to remove the signage on the lower part of the door and instead paint the white and black classic lettering in the window. It will definitely create a more cohesive look. It is a little sad to sand off all that gold.
I had to paint the lettering in reverse, standing on a chair. The reverse side of the glass is smoother, can't paint very well on the deeply stippled side. I'm really happy with how it is coming along.
The next step is to repaint a second layer of black, then reline it with a thin white. The reason I am doing this additional work is that I want to ensure the lettering is opaque. I have a really bright work light to shine on the reverse side when doing this. I may also rework some of the letters once I can see them with a fresh eye.