Thousands of coins are minted every day in a very complicated process.
If you’re able to take a tour of the United States Mint to observe
this process, you’re likely to find it intriguing and educational.
If you’re interested in
coin identification and coin collecting in Rockville, MD, but are unable to take a tour of
the U.S. Mint, read on for information on how coins are made.
Blanking and Annealing
The U.S. Mint uses strips of metal that are 13 inches wide by 1,500 feet
long to create nickel, dime, quarter, half-dollar, and dollar coins. Pennies
are created from a pre-stamped strip. These strips arrive at the Mint
rolled up into a coil. As the coins are fed through a blanking press,
the press punches out discs, or blanks. These blanks are heated in an
annealing furnace to soften the metal, and then run through a washer and dryer.
Riddling, Upsetting, and Striking
Once washed and dried, the blanks are sorted via a machine called a riddler,
which removes blanks that are the wrong size or shape. The next machine
used is called an upsetting mill, which raises rims around the outside
edges of the blanks. Next, the blanks travel to a coining press, which
stamps the blanks with the designs and inscriptions that transform them
into genuine United States currency.
Inspecting, Counting, and Bagging
coins are inscribed, a press operator inspects each coin with a magnifying glass. All coins
that pass inspection are run through a machine called a coin sizer, which
removes any dented or misshapen coins. Finally, an automatic counting
machine counts the coins and then adds them to canvas bags. These bags
are sewn shut and stored in vaults. New coins are transported via truck
to Federal Reserve Banks, and from there, to your local bank.
If you have rare coins that you would like to have appraised by a
coin dealer in Rockville, visit Coins of the Realm. We offer free verbal appraisals in our store,
as well as formal appraisals for a small fee. Contact us at (301) 340-1640
for more information.