- Process:
- Coin Ideas
- Artwork
- Sculpt
- Dies
- Melt
- Extruding
- Rolling
- Blanking
- Polishing
- Striking
- Finishing
- Packaging & Display
Rolling
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Strips Are Rolled
Once the long, thin strips of extruded metal have cooled, they are trimmed using a hydraulic shearer and prepared for rolling. A highly precise instrument called a micrometer is used to calibrate the precise thickness of each strip of metal. Next, the strips are individually fed into a high-pressure rolling machine and gathered for the next step in the process. After each strip has been rolled, it is inspected to ensure that it meets the specifications for thickness.
After the strips have been rolled, they are then sent to the blanking machine.
Would you like more information on the types of minted items available from Northwest Territorial Mint? Request a FREE information packet with detailed information about custom coins and other minted products.
The earliest known coins were struck in Lydia and Ionia (modern western Turkey) from electrum, a naturally occurring alloy of gold and silver. Each coin blank was cast to a predetermined weight. Then the blank was heated to a malleable temperature and struck with a hammer between two engraved dies. These archaic coins usually depict a symbol of the city or ruler on the obverse and a crude punch mark on the reverse. They were the world's first true coins because they were composed of a scarce metal, of a consistent weight, and guaranteed by a government.
