Coin edge

Coin edge enscription mill

Coin edges may be plain (smooth) and patterned.

Reeded edges are often referred to as "ridged" or "grooved" (US usage), or "milled" (UK usage).[1] Some coins, such as United States quarters and dimes, have reeded edges. Reeding of edges was introduced to prevent coin clipping and counterfeiting.[2][3]

The main techniques of coin edging are edge mills of various types, which put a pattern on a smooth edge after a coin and coin mills with edge ring, which pattern the edge at the time when the coin is being milled.

Coin edge gallery

References

  1. ↑ Concise Oxford Dictionary (2006): mill, produce regular ribbed markings on the edge of (a coin)
  2. ↑ About.com: "Reeded Edge Defined - What is a Reeded Edge?"
  3. ↑ Why do some coins have ridges around the edges?
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