These pieces were left in the trunk of a 'new' '57 Olds I purchased and the previous owner left them in there thinking they were '57 pieces. The owner had 2 other cars so they may be off of them - he had what looked like 2 mid '60s Cutlasses. They were under tarps and didnt ask about them. I have to assume they were off of them. No numbers on the pieces but they are solid metal with minumal surface rust. Take all of these brackets for 15 bucks plus shipping. Shipping from zip code 07092