Hot Rods Offenhauser question

I just bought a pr of Offenhauser valve covers for my Caddy motor. They are rounded on the ends. He said they were old. Is there a way top tell if they're vintage or repops? Either way was a good find. Txs

 

Seeing as offy still makes stuff in the same old building with the same old molds I doubt there’s anyway to tell if they are newer or older

 

Makes sense. Didn't know if there would any way to tell. I should have them in a few days

 

And with this being said, what difference would it really make when they were made???

 

If there is a tell tale difference, depending on the car being built, A LOT.

 

I would imagine the only difference would be something like a mold repair being obvious after X date. Like you see in the corvette finned valve covers.

 

My 409 Offy rockers didn't have any sort of date on (inside) the pad. Making them fit old and new..!

Mike