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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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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Numismatics - Peter's true passion
In recent years, interest in numismatics has increased among the Russian population, which is both exciting and quite profitable. Following this trend, many shops selling antiques open stores for coin…

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copper carbonate

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

Interesting facts about coins
Money constantly appears in our world. In any country, in any currency and in any form, be it paper or metallic money, but only thanks to them can we get…

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Coins and medals of the colonial countries (XVI-XXI centuries)
While in some countries, for example, in China or Japan, money in the form of coins was used for a long time, most of the Asian, African and American continents…

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Numismatics - Peter's true passion
In recent years, interest in numismatics has increased among the Russian population, which is both exciting and quite profitable. Following this trend, many shops selling antiques open stores for coin…

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