European coins and medals (XVI-XXI century)
New time in numismatics begins in Europe around 1500 in the lands of the Habsburgs. In 1486, by order of the Archduke Sigismund (1439-1490), the Tyrolean guldengros was minted. It…

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Valuable little thing. How to make money on investing in rare coins
Rare coins can grow in price by hundreds of percent over ten years. What influences their value and how to find assets attractive for investment in this market? Old coins…

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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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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

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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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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STARTING COLLECT ...
We are looking at the coin. Do not take her fingers for the image. Even beyond the very edge. There is always fat on the fingers that remains on the…

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