Need help determining if my new grille is nos

[70Chevy4x4Nut]

I purchased what I was told was a nos grille. From the pictures it looked good, but on receiving it I started noticing some slight issues. Why would a nos brace look like this. I have two older ones and they both look like the top picture, but the "nos" one looks like the bottom. There are other things I see and will post later. Could this possibly be a refurbished grille that was re-anodized? Or a reproduction. This does have the chevrolet lettering, so were any repops made with the lettering? Anyone have knowledge of these grilles.