I would think there would be a nut on a pin on the back side.They did not glue things on back then.

From what i remember of my own 57, the pins are pushed into those little metal insert grabbers. There are no nuts, the pins just push and lock. The only way to remove the stars, is to very slowly pry them off with out damaging the push pins or inserts. Use a small thin metal scraper and take your time. Try to save all of those small metal grabber inserts. Good luck.

Having just removed the stars from my '57 Star Chief, I can confirm that they just pry off, and in my case all came out attached to the star. I had noticed for some time prior to their removal for paint and panel, that some stars came off just by catching them on the pocket of my shorts, which was obviously not a good situation.

In my case, I replaced the stars with repro ones as the originals were badly corroded. To ensure the stars stayed where they should and weren't removed by prying fingers at shows, I threaded the pins, and secured with nuts from the inside.

long stroke wrote:

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seventy2plus2 wrote:

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The metal grabber inserts are called barrel clips.

If you're lucky, the barrel clips will remain in the panel when the emblem is removed. However the barrel clip may come out with the emblem. That's ok, as you can likely then use penetrating oil on the barrel clip to remove it from the emblem, and push them back in the hole.

Worst case scenario is the pin breaks off the emblem and remains in the barrel clip in the panel.

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 Clint, i appreciate knowing the proper terminology for those special clips. 

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At least I'm pretty sure that's what they're called.   They're used to hold the "Calgary Motor Products" emblem on to my 2+2 hdtp.  Someone at the dealership would have had a template to drill holes into the trunk lid, push in the barrel clips, then mount the dealer emblem into them.