Question on Minting Process

Discussion in 'US Coins Forum' started by JeffC, Dec 26, 2020.

  1. Conder101

    Conder101 Numismatist

    It did until 2002 when they switched over to the schuler horizontal presses. Before that they were struck vertically.

    Another good video shows the process from a century ago (You'll want to watch with the sound off, this was a silent film but they added a horrible music track to it.) You can see the striking process at 4:50 - 5:05


    in this video from the Royal Mint you can see the striking starting at 3:25. This is a different type of vertical press that uses rotating feed fingers. The planchet is rotated into position and drops down into the coining chamber, as the anvil die drops back down. the hammer die comes down (You can see the hammer die sticking out of the die holder) the coin is struck, the anvil dies rises up pushing the coin out of the chamber and then the feeder rotated that one out of position and the next planchet in position, then the cycle repeats. At 3:39 they do proofs which really lets you see how the dies strike the coin and of course in that case they are placing the planchets in by hand.

    At 3:42 he places the planchet on the die face, 3:43 the anvil die drops and the planchet drops intot he coining chamber (the collar). At 3:57 the anvil die rises up pushing the coin out of the collar.

     
    Last edited: Dec 28, 2020
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  3. JeffC

    JeffC Go explore something and think a happy thought!

    Thank you. I'm going to write to the Mint to see if they have diagrams and if there's such a thing as a backstage pass (fingers crossed). I'd like to visit when the pandemic is over.
     
  4. Conder101

    Conder101 Numismatist

    No backstage passes, and on the floor you really can't see anything because it is all closed in for sound suppression (And it is still very noisy)
    Closest thing to a backstage pass was at the ANA Summer Seminars they used to get a floor tour of the Denver Mint. I don't believe they have done that for several years now.
     
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  5. GDJMSP

    GDJMSP Numismatist Moderator

    There's really nothing else TO SEE about the striking process beyond what is shown and explained in this thread.

    The basic striking process of coins has remained the same for 2,000 plus years. It started with dies almost identical to these from 1560 -

    qtr taler dies 1560 Joachimstal.jpg


    The hammer die is on top, anvil die on the bottom. The anvil die was set in a block of wood, (that's what the spike is for), a planchet placed on top of it by hand, the hammer die held by hand and struck with a hammer by hand.

    The only changes since the beginning are the various machines they came up with to replace human hands. Other than that and a few minor changes like collars the process is essentially still the same.
     
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  6. JeffC

    JeffC Go explore something and think a happy thought!

    Thank you for both videos, especially the second one. Thanks for taking the time.
     
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