Greetings,
I have a Chamonix 45n-2 camera and I noticed the ground glass is dirty and has a slight fog to it.

When I started to remove the ground glass I noticed there are 3 sheets of glass.
1. This is the piece of glass that has the grid on it and it labled Chamonix and closest to the lens.
2. This piece is the Fresnel lens and it sits on top of the 1st piece, the one with the grid lines.
3. This piece looks to be a plain sheet of glass with no special properties that I can determine and it is the piece that my loupe rests against to focus.

So my question is: are the sheets of glass in the correct order and what is the recommended way to clean the sheets of glass.
What should I use as a cleaner and type of cloth to use.

I would guess that Windex and paper towels are out of the question.
I do have a can of all purpose window cleaner.

As usual your advice is always appreciated.

Thanks

Gary