Trojan Boat Forum

I have a 1974 30' sea raider. New to me this season and finding things that need replacing. The previous owner put in tinted plexiglass in the forward berth window which has warped and leaks. I would like to replace it with what was there originally and install it properly. What was there, fixed glass? Are they available or do I need to get them fabricated from a glass shop?
Also, what was used to seal them in place?

Thanks

Randy