Hot Rods Cragar with a center ring? What am I looking at?? lol Never in my life

A different angle of a 15x14 to show what's going on

 

You can see the valve stem in the original photo that confirms Moriaritys thought

 

I'm getting a headache in my eyes.

 

Wow! Easy to see in that pic.
So, the only question that remains is.................. what is the go with the OP's post quoted below???

 

Here's the ad the original poster viewed

https://www.facebook.com/share/1CF9CjUr1B/

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