Those are some fun videos! That huge sheet of metal just hole-punched into blanks. It's amazing how automated the whole thing is, I saw one person physically doing something.
I remember visiting the Philadelphia mint and seeing where pennies are made. There were little copper "sparkles" on the ground and after a while I realized those sparkles were shiny new pennies!
Lucky you! I have not been to any of the mint.
This is a video of how they make pennies.
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