Crusader coins (ca. 1095-1523)
It is unlikely that there will be events that have had such a strong influence on the social and cultural development of the medieval world from the 11th to the…

Continue reading →

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…

Continue reading →

What is now in price on the numismatic market
The dollar is falling, and the ruble is growing stronger. Especially - old. Antique coins are sold at auctions for "big money". So, at the Gelos auction before the new…

Continue reading →

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

Franz Joseph I Commemorative Coins
From December 2, 1848, Franz Joseph I was Emperor of the Austrian Empire and King of Bohemia, Apostolic King of Hungary. Franz Ripl in 1829 gave the emperor the idea…

...

What is now in price on the numismatic market
The dollar is falling, and the ruble is growing stronger. Especially - old. Antique coins are sold at auctions for "big money". So, at the Gelos auction before the new…

...

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…

...