I am sure that this is old stuff to many of you, but it is new to me and hopefully this will serve as education to many people.
The first pic shows one side of the chip.

The second pic shows the reverse with one of the coin inlays missing. I always figured that the coin inlay was just one piece of metal.

The third pic shows the chip with the coin inlay totally removed.

I hope that someone found this as interesting as I did.
Best Regards,
Murph