If you have not seen the first parts of this series, please visit my: First Plated Coins page.
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![]() Larissa - Fourree drachm - 400-344 BC - 5.5g |
Compared to Roman coins, many Greek issue were struck with high relief designs. This facing head drachm from Larissa is certainly a fine example. To execute this high relief, great care in flan preparation (heating) and forceful striking was required. These same factors tend to hide the telltale plating seams discussed on the Roman pages. Hidden among the scratches on the reverse of this coin are fine traces of a seam including a place at 5 o'clock where the core is exposed. Wear has revealed the core on the tip of the nose and on some edge beads on the obverse. If the dies used to produce this coin were not official, they seem well done. |
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![]() | Hellenistic Greek silver is also found plated. This tetradrachm of Ptolemy VI dated 162/1 BC (LK) with Paphos mintmark was thickly plated by the foil technique. A seam shows near the edge of the obverse and several plating breaks expose core on the portrait. The thick silver on this coin withstood wear well but spotty corrosion of the core probably produced bubbles like that shown on the Trajan denarius shown on the Imperial page. Such eruptions leave many plated coins ugly compared to their original appearance. Cleaning a plated coin is a risky matter. It is easy to make them look even worse by removing even more silver. Corrosion of the cores have left some fourrees as delicate hollow shells. |
Plated coins are found across the coin issuing 'Greek' world. There are fourrees of Celtic Britain, Spain (left above), the Eastern Empires (left below) and most, if not all, of the coining authorities of Greece itself. Some issues are so commonly found plated that we suspect that they were officially issued. Unfortunately, other than the Athenian 'Emergency' discussed above, we lack documentation of this. For collectors, it is best to consider plated coins as interesting ancient sidelights but not official unless there is specific evidence that points to their being products of the government rather than counterfeiters. All plated coins sold should be clearly identified as such! The market value of these items is much less than solid items. This discount can be as much as 99% depending on the attractiveness (or ugliness) of a given specimen. In most cases, fourrees are much less common than the same issue in solid silver but this rarity does not impart any value to the coin to collectors. However ancient and interesting, a peeling and ugly fourree is considered untouchable by the majority of collectors. Perfect specimens with absolutely no core exposure are worth less than half the price of a solid coin. In recent years there has been an increase of interest in this sideline of collecting ancient coins but I encourage those wishing to participate in that speciality to use common sense when buying coins with so limited a market for potential resale. Let us be clear: Fourrees are not recommended as investment items for those interested in capital gain. | ![]() Segobriga, Spain - Fourree drachm 204-154 BC - 3.0g ![]() 450-330 BC - 4.1g |
Kroton - SOLID silver stater - c.300 BC or later? - 6.7g
An important point regarding plated coins is made by this stater of Kroton. Some solid coins have been mistakenly condemned as plated. The flaws shown on this coin were caused by the removal of corrosion or horn silver from the coin. This exfoliated the denser surface layer of the coin and exposed the spongier center. Striking places considerable stress on the surface of coins resulting in a distinction between the surface and core. Some mints made this worse by 'pickling' flans in an acid bath that leeched away base metals from the surface layer. The resulting purified silver layer was compacted by striking leaving a fine silver surface over a less pure silver core. This could make an 80-90% silver flan appear to be 100% silver. Some, but not all, mints used these 'pickled' flans. The technique would have no effect on the pure silver used by the best mints but could improve greatly the product when using lesser quality silver. I can not state for certain that the technique was used on this coin. The coins is a bit underweight as appropriate considering the loss of metal to the cleaning process. I disagree with the (now out of business for reasons more serious than not being able to tell a plated coin!) major dealer who sold this coin as fourree. Other solid silver coins encrusted with copper deposits have been sold, incorrectly, as plated. To be fourree, the copper needs to be on the inside and the silver outside, not vice-versa. |
Footnote:![]() |
Please visit the other two parts of this series:
Republican/Imperatorial Plated Coins
Roman Imperial Plated Coins
An excellent book on this subject complete with great micro-photographs is: Campbell, William, Greek and Roman Plated Coins, Numismatic Notes and Monographs No. 57, American Numismatic Society, 1933. Numismatic used book sellers often have it.
© 1997 Doug Smith