MONETA JOHN
The Russian Empress Elizabeth did not think that a number of her decrees, by which she had eradicated a relatively common coin, would make this coin a numismatic rarity. However,…

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What is the cost of silver coins of Tsarist Russia
We can safely say that silver coins of tsarist Russia of 1700 - 1917, will definitely be able to delight everyone, even the most fastidious and demanding coin collector, otherwise…

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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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Yeru simple device

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

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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Possessions of the Habsburgs - Austria (XII-XX centuries)
In 1273, King Rudolph I became the first representative of the Habsburg clan who ascended to the Roman-German throne. It began the reign of the Habsburg dynasty, which lasted until…

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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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