Window and Storm Window Maintenance services needed
I have a 1945 built home that has Steel Casement Windows with accompanying Wood storm Windows (indoor installed). The storm windows have felt attached around the frame. The felt makes for a snug fit which keeps winter's cold air out. The felt on several windows is no longer effective and needs to be replaced. I have been unsuccessful in identifying a who/where I can get this replaced. I willing to do it myself if I could get how to instruction.
Antil Window and Door
https://antilwindowanddoor.com/
4th generation building the exact storm you described. I had some made last year.