The Talking Machine Forum — For All Antique Phonographs & Recordings

I have used mica numerous times replacing the view windows on old coal stoves. It's inexpensive on eBay, a sharp scissors will work fine to cut it to size and it can be drilled just as easily.

Steve

https://www.ebay.com/itm/4pcs-Large-Fre ... SwUEFeBaR2