Groat (coin) Groat (coin) The groat is the traditional name of a long-defunct English and Irish silver coin worth four pence, and also a Scottish coin originally worth fourpence, with later issues being valued at eightpence and one shilling. The name has also been applied to any thick or large coin, such as the "Groschen" ("grosso"), a silver coin issued by Tyrol in 1271 and Venice in the 13th century, which was the first of this general size to circulate in the Holy Roman Empire and other parts of Europe. The immediate ancestor to the groat was the French "gros tournois" or
Coin inflation, as market values for the metal overtake the fiat declared face value of the coin. Examples are the pre-1965 US dime, quarter, half dollar, and dollar (nominally containing slightly less than a tenth, quarter, half, and full ounce of silver, respectively), US nickel, and pre-1982 US penny. As a result of the increase in the value of copper, the United States greatly reduced the amount of copper in each penny. Since mid-1982, United States pennies are made of 97.5% zinc, with the remaining 2.5% being a coating of copper. Extreme differences between fiat values and metal values of coins