Rader wheels or not Rader wheels, that is the question

I found these wheels for sale and I’ll probably buy them anyway, but I’m wondering if there is a chance they might be Rader wheels (as in XR7-G stuff)? The seller says they’re from a 68 Cougar. Looking at pics of genuine Rader wheels on WCCC’s site, these seem close, but there are some differences, most notably, the location of the valve stem. Is there a way to know for sure?
wheels.jpg

Notice they do not have the chrome outer band rather they are a one piece aluminum wheel. Don’t pay over $100 for the set unless you really like em!