Silver Dollar Blog - Video on Coin Making

Oct 17, 2011

I found this great video created by Discovery Channel “How it’s made”. This video goes into great detail on how coins are made.

Not much has changed since the beginning of coin minting! Of course the machines used like the old coal furnace have come along way. But the process itself hasn't changed much. First you must melt the silver in the proper portions for a given coin. The Morgan Dollar was 900 parts of silver mixed with 100 parts of pure copper. Once the silver and copper combination are melted its cast into a bar then rolled flat.  Until 1901 the mint was not able to roll the strips with a perfect consistent thickness all the way around. They had to take these variations out by draw benches after being annealed again. Today the ingots are passed through what is called the roughing mill where two rollers squash it flat using up to nine tons of force. It takes about a dozen passes to get the strip to a perfect thickness.

This video gives a clear picture on how coins are made today.



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