Lessons the U.S. Mint's manufacturing staff learned in developing and
producing the 2014 National Baseball Hall of Fame commemorative coins
are the topic of a Jan. 29 presentation at the World Money Fair in
Berlin by Ronald Harrigal, senior advisor for the U.S. Mint's
Harrigal's address covers the die and planchet preparations needed
to produce the maximum Proof and Uncirculated mintages of 50,000 gold
$5 half eagles, 400,000 silver dollars and 750,000 copper-nickel clad
His presentation focuses on the efforts during the year preceding
the sale of the commemorative coins, which included anticipating and
developing coin designs and dies, deciding whether to hub or machine
dies, and developing packaging.
The curved shape of the coins, with concave obverse and convex
reverse, presented the Mint this technological production challenge
for the first time. The U.S. Mint reached out to counterparts at the
government mints in France and Australia, both of which had previous experience
striking curved coins.
Many challenges the U.S. Mint faced can be found detailed here on the Coin World website.
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