are my Motion Valve covers repop or real ?

[4MyChevelles]

I have a really nice set of finned aluminum Motion Valve covers that do have ANSEN stamped or should i say embossed on the bottom side right under the word motion but they are so nice it's hard to beleive there real is there a way to tell if there fakes ? there is not a single scratch on these things look way to new to think there 30 plus years old...no origin like USA, CHINA, JAPAN, nothing !they were never mounted on an engine by the condition of them .
I don't know to be Happy or Mad about these things