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The engraving of coins is a 7 step process:
Step 1: Blanking: The
Step 2: Annealing, Washing and Drying: The metal blanks are heated in an annealing furnace to make them pliable for processing. The metal is then washed and dried.
Step 3: Riddling: The cleaned blanks are then sorted on a “riddler” to remove any sheets that are the wrong size or shape.
Step 4: Upsetting: Then, the good blanks are sent through an upsetting mill to raise a rim around their edges.
Step 5: Striking: Next,
the good raised blanks go through a coin press to become the official
Step 6: Inspecting: A press operator uses a magnifying glass to spot-check each batch of new coins. The inspected coins go through a coin sizer to remove any broken coins.
Step 7: Counting and Bagging: An automatic counting machine counts the coins and drops them into large canvas bags which are delivered to your local banks.