Nos 67-9 Barracuda Notchback & Fastback Rear window trim

Ok, I got ya, the 1st 5 pics #2783538 is the 67 Mylar lockstrip for the rear windshield. Any yellowing/hazing? I would be concerned about brittleness etc for 50 yr old "plastic"
1st pic is the plastic 67 only Notchback RH Upper and the 2nd set of pics is the RH 68-9 Lower for a fast back which is twice the size of the notchback piece.