Prior to the modern era, coin dies were manufactured individually by hand by artisans known as engravers. In demanding times, such as the crisis of the Roman Empire in … See more

Note about spelling
In the time of Samuel Pepys in the 17th century, the spelling "dye" was used, a spelling which … See more

During a typical production run, or coining process, (particularly when heavy presses are used for large production runs) a die is selected out of a … See more

The terminal die state, as the name would seem to indicate, is the last state in which any die is used. This is the state of a die that is starting to … See more

Medieval engravers were guild members who created coins.
The vast majority of medieval coins were cold struck; the See more

On the edge of the US dime, quarter and half dollar, and many world coins there are ridges, similar to knurling, called reeds. Some older US … See more

In modern presses, a die strikes approximately 120 coins a minute. This rapid coining causes wear on the dies. Nickel alloys are among the main metals used in today's … See more