How many ridges are on the edge of a quarter?

Answer

There are 119 ridges around the edge of a quarter. Quarters contain an alloy of 8.33 percent nickel and 91.67 percent copper. They are 1.75 millimeters thick and 24.26 millimeters in diameter. Prior to 1965, quarters were made entirely out of silver.

The ridges on quarters and other high-value coins, such as dimes, half-dollars and dollars, were initially used to prevent counterfeiting and discourage shaving material from their sides, as they were made of precious metals. Coins are no longer made using precious metals, but the ridges remain in the quarter's design to aid in identification of the coin by the visually impaired.

Q&A Related to "How many ridges are on the edge of a quarter?"
It's called "milling" and it's a historical relic. At one time, coins were made of precious metals (gold or silver) Unscrupulous people would shave the edges of coins and
http://wiki.answers.com/Q/Why_are_dimes_and_quarte...
There are 119 ridges on the edge of the quarter, and 118 on the edge of
http://www.chacha.com/question/how-may-ridges-are-...
I don't think they stand for anything. Ridges were put around the edges of coins (when coins were made of valuable metals like silver and gold) to prevent people from shaving small
http://answers.yahoo.com/question/index?qid=200704...
Hi Kai, Thank you for your question. Dimes, quarters, half dollars, and the older dollar coins all had reeded edges because they used to be made out of silver. This prevented people
http://en.allexperts.com/q/Coin-Collecting-2297/co...
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The ridges around the edge of the quarter is to prevent counterfieitng. The amount of ridges has no specific significance. The ridges were used to keep people ...
A quarter has one hundred and nineteen (119) ridges and is actually called reeds. A ridge is a geological feature consisting of a chain of mountains or hills that ...
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