countless small coins
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
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 doubt one of the most versatile and diverse areas of coin collecting.
While other European countries, such as England, Spain or France, by the end of the Middle Ages became national states in which coinage was carried out centrally, Germany until the founding of the Empire after the Franco-Prussian War (1870-1871) remained geographically heavily fragmented. Continue reading
