On the fate of coin stamps of the St. Petersburg Mint
Mikhail Ivanovich Smirnov, the archivist of the St. Petersburg Mint, published an interesting article in the 6th issue of the Old Coin: “The Mints Cabinet and the Museum of the…

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Banknotes and paper money (VIII-XX century)
The history of paper money is just as exciting and varied as the history of metallic money. At the beginning of the history of paper money, there were two forms…

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Treasure Hunt in Ukraine
Findings of treasure hunters of Ukraine fascinate with their wealth and antiquity: here are Scythian gold, royal coins, church utensils, ancient icons, various artifacts and decorations. Perhaps you also want…

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soda solution

Cleaning of old coins

The purpose of this message is to acquaint interested readers with the most simple and safe methods of cleaning coins, which the author can recommend based on his many years of experience in the restoration of an archaeological metal at the State Hermitage Museum. Clearing coins is one of the crucial types of restoration, it is important for their study, dating, identification and storage. Ancient coins made of silver and copper alloys, found in treasures or in other archaeological excavations, most often enter the restoration workshop highly corroded, and sometimes completely mineralized. Under the action of water and salts, copper is destroyed in the soil to form green carbonates and chlorides, red cuprous oxide and black oxide. Continue reading

NUMISMATICS AND COLLECTION
It is difficult to convey what the collector of old coins is going through, having found the necessary coin after a long search. This is an incomparable joy of the…

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Greek coins (VII-II century BC)
In ancient Greece, the fundamental foundations of the development of European civilization were laid. The cultural achievements of the “classical time” (ca. 500-363 / 323 BC) include not only the…

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Coins and coin type of ancient Greece
The stamp imprint on the coins is the seal of the country or city that issued it. The drawings and inscriptions on the coins represent the most important concept of…

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