The most rare and expensive coins of the USSR
In this article we will consider the reasons for the emergence of expensive coins of the USSR. Surprisingly, the list of the most expensive Soviet rubles and kopecks includes not…

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Yuri Pokras on how the Violiti Internet auction works
We talk about the largest Internet site for the sale of antiquities in the post-Soviet space with the famous Kiev collector, Violiti website administrator Yuri Pokrass. - How many years…

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About buying coins
Until recently, buying up coins and their further resale could be quite a successful small business. This is especially true of the 90s, when people, without getting paid for years,…

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oxides connecting them

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

How to search for coins with a metal detector
A pot of gold coins hiding not only leprechauns on the poppy field, such finds of Ukrainian treasure hunters happen in our not at all fairy-tale state. Of course, it…

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Chinese Coins - 2000 Years of Coin History and Money
China is the most populous country in the world. Its population is 1 billion inhabitants, and the history goes back more than 2000 years. Scientists have found that money was…

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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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