How to clean antique coins- Roman coin Project

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The cleaning of an artifact is an irreversible operation once the corrosion products have been stripped, some precious information and history can be lost forever.
Always leave a small area of the original corrosion products on an artifact.

The methods for cleaning bronze can be:
- electrochemical
- electrolytic
- mechanical
The less invasive method is mechanical cleaning under microscope observation and the results are amazing!

Metaux rares et pierres precieuses

Metaux rares et pierres precieuses, Collection Sciences et Voyages, Paris,  Autor: G. Kerormel  An aparitie 1926, cuprins relevant pentru cu...