In 1984 I used Marvin Replacement windows. The sash is still in great shape, but the Jams are starting to go. I have included a picture of the lower sash part way up, a picture of the overall jam, a picture of the window frame & glass and in the middle of the glass it is marked "IGCC-303 CBA Marvin" and a picture of the Jamb with marking"28 B.S.I."
Would you have a replacement jam that would work?
Thank you