Celtic Coins (III-I century BC)
The name "Celts" was first mentioned by the Greek historian Herodotus (Greek "keltoi" means "brave"). At one time, the Celts were scattered throughout Northern Europe, although it was never a…

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Treasure Hunt in Ukraine
Findings of treasure hunters of Ukraine fascinate with their wealth and antiquity: here are Scythian gold, royal coins, church utensils, ancient icons, various artifacts and decorations. Perhaps you also want…

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Numismatists will be able to collect collectible cryptocurrencies
The most popular electronic currency has once again puzzled its followers. Just a couple of days, the bitcoin rate again fell from 11,500 to 8,500 dollars. But such sharp jumps…

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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

Numismatists will be able to collect collectible cryptocurrencies
The most popular electronic currency has once again puzzled its followers. Just a couple of days, the bitcoin rate again fell from 11,500 to 8,500 dollars. But such sharp jumps…

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Vintage German coins and medals
Coinage in the territory of the German state from the end of the Middle Ages (XV century) and until the introduction of the imperial state currency in 1871 is without…

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COIN NOT ON POCKET
This coin really can not afford neither in size nor in weight. She appeared in the reign of Catherine I. True, her institution was not original. In the first half…

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