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…

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Medieval coins (ca. 500-1500)
Medieval coins (ca. 500-1500)The Middle Ages spanned 1,000 years of European history, starting with the earliest chased coins of the German successor states of the Roman Empire during the Great…

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The Great Migration of Nations (4th-6th centuries AD)
The prevailing idea that the hordes of barbarian peoples invaded the borders of the Roman Empire and thus caused its fall is outdated and no longer corresponds to the findings…

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copper carbonate

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

Medieval coins (ca. 500-1500)
Medieval coins (ca. 500-1500)The Middle Ages spanned 1,000 years of European history, starting with the earliest chased coins of the German successor states of the Roman Empire during the Great…

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Numismatics Museum in Nicosia
The ancient Greeks attributed the invention to heroes of myths, and the Romans to their gods Janus and Saturn (they believed that the oldest coins were made by Janus in…

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Opening an antique shop
Acquisition of antiques - it was and remains one of the most reliable ways to invest money, which allows you to ensure a stable income in the amount of 20-50%…

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