![]() ![]() The abbreviations given here are those commonly used by numismatists, and are the abbreviations used in the database. Striking a coin refers to pressing an image into the blank metal disc. ![]() The un-struck or flat side of a uniface coin or medal. A prepared disk of metal on which the design for a coin will be stamped. Examples are the 1 and 2 Euro coins and the Canadian 'toonie' two-dollar coin. In antiquity coinage could be made from electrum ( EL), gold ( AV), silver ( AR), copper or bronze alloy ( AE), brass or orichalcum ( Or), or heavily leaded silver or billon ( BI). FORGERIES:Silver,Electrum and Gold coins can be faked by using other metals to make up. A coin with one type of metal in the center with an outer ring of a different metal. A prepared piece of metal of appropriate weight ( flan) was then placed between the two dies and struck. The obverse die was placed in an anvil, while the reverse die was held by the mint worker. Coins were either cast, or (more commonly) struck using two dies. In antiquity coins were often produced by hand, and this process could result in imperfections. The reverse is normally the 'tails' side, or the side struck from the die held by a mint worker. The obverse of a coin is usually the 'heads' side, though technically it is the side of a coin struck from the die placed in the anvil during coin production (see below). The field of a coin is the blank space surrounding the image. The Lydian stater was composed of electrum, a naturally-occurring gold-silver alloy though the coins are often reported to be struck from this naturally-occurring alloy, they were actually made from a specific and rather consistent mix of approximately 55 gold, 45 silver, and a small balance of copper. The exergue is a space on the coin below the central design, usually delineated by a line. There is a specific terminology used by numismatists when describing a coin. This page contains an introduction to the terminology used when studying coinage.
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