Planchet - Planchet A planchet is a round metal disk that is ready to be struck as a coin. An older word for planchet is flan. They are also referred to as blanks. The preparation of the flan or planchet has varied over the years. In ancient times, the flan was heated before striking because the metal that the coin dies were made out of was not as hard as dies today, and the dies would have worn faster and broken sooner had the flan not been heated to a high temperature to soften it. Today's dies are made from hardened steel, and the presses use many thousands of pounds of pressure to strike coins (varying according to the size of the coin and the complexity and relief.
Hammered coinage - of ca. the 15th-17th centuries. Hammered coins were produced by placing a blank piece of metal (a planchet or flan) of the correct weight between two dies, and then striking the upper die with a hammer to produce the required image on both sides. The bottom die (sometimes called the anvil die) was usually counter sunk in a log or other sturdy surface and was called a pile. (This is probably related to the modern term pile driver.) One of the minters held the die for the other side, called the trussel, in his hand while it was struck either by himself or an assistant. In later history, in order to increase the production of coins, hammered coins were sometimes produced from strips of metal of the correct thickness, from which.
Die Deterioration Doubling - right mix of carbon and iron to make good steel. An improper mix would result in either soft steel or in steel which is too brittle. In the annealing furnace, the same conditions apply. If, when the steel is heated, there is too much carbon in the furnace, the steel will absorb more and will become hard and brittle. If there is not enough ambient carbon in the furnace, the steel will give up some of it’s carbon and will become soft. This process is known as decarburization and results in a thin surface of inadequate metal whose chemical composition has been altered and is below standard. Either of these alternatives would produce a die that would wear too quickly and create Die Deterioration Doubling. Another less obvious error can also.
Coin die - to make an epoxy galvano. All of this takes place on a scale of around eight inches. Next, a Janvier reducing lathe takes several days to reduce the image onto a steel master hub in a process that has not changed in over a hundred years. The master hub is then tempered to make it hard. A small number of master dies (incuse) are then made from the master hub. These are then used to make working hubs. The working hubs are then used to make working dies. With each step, the number goes up. The working dies are then used to strike coins. All dies are incuse, and all hubs look like the coin being struck (with the devices raised.) The final step of course is that the dies are.
Roy Kinnear - That Was. He later appeared in many films and UK TV shows. Kinnear tragically bled to death following a broken pelvis which he sustained by falling from a horse during the filming of The Return of the Three Musketeers in 1988. Filmography: The Return of the Musketeers (1989) Planchet Just Ask for Diamond (1988) Jack Splendide A Man for All Seasons (1988) The Common Man Mr. H Is Late (1987) Piper Unusual Ground Floor Conversion (1987) Previous Tenant Casanova (1987) Balbi Hardwicke House (1987) R G Wickham Pirates (1986) Dutch Bertha (1985) Narrator The Clairvoyant (1984) Squaring the Circle (1984) Kania The Zany Adventures of Robin Hood (1984) Friar Tuck Anna Pavlova (1983) Gardener The Boys in Blue (1982) Lloyd Hammett (1982) Eddie Hagedorn If You Go Down in the Woods.
Mint-Made Errors - the minting process. These fall into three general categories. Planchet Errors Hub and Die Errors Strike Errors.
