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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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 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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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

Commemorative coins
In the new history there are many anniversaries, celebrations, coronations, which you can almost always find out by looking at the coins issued in honor of this event. A Soviet…

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FIRST RUBLE
- The original ruble of the Russian Tsar Alexei Mikhailovich in the catalog of V. I. Petrov (1900) is estimated at 300 rubles. Of course, the cost of extremely rare…

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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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