I took the seat back off the seats in my car looking for a buildsheet and found 1. I knew it wasn't going to be for my car but was suprised to see they were JS29N0B199881'S seats. The car was a 1970 383 RT/SE Light Gold Metallic with green interior. If anyone owns this car or knows the owner please PM me. The seats are rough but rebuild-able. the buildsheet is wrinkled and torn but still in 1 piece.