How does a planchet become a Proof coin?
A Coin World archived video recently shared on our
Facebook page shows you one step in the process.
During a 2013 trip to the West Point Mint, Senior Editor Paul Gilkes
captured video of raw silver blanks for the 2013 American Eagle West
Point Two-Coin Silver Set being spun with steel media and chemical
solution in a Spaleck Finish machine to brighten the finish of the
blanks, preparing them to be struck with a Proof surface.
Have a look.