History Lost History for Future Generations

Second....has anyone...ANYONE seen these before? They are absolutely old (especially based on the packaging), but I tried the Googlenater and come up with nothing at all. Any thoughts?

 

Third, and lastly.

There was a set of four CRAGAR chrome "stock" rims that Nertz ran on his Shoebox for years. They were on a shelf, and I tried in vain to replace the bolts that hold the center in with Grade 8 bolts and lock washers. Well, I put them on my one 56 Ford, and the nuts on the inside hit the drums and rotors. I'm guessing the 50 Ford had a smaller diameter drum and rotor than the 56? I suppose if I had a small fortune, I could have a tire shop somehow rivit, balance, and seal these inserts to run them. Then again, they would look cool on the shelf and be less expensive!

 

do you think if those were rivets they'd clear?