Plea to recover the data from the site: http://silver-copeck.ru
It was a mine of information on all the kopecks of the Russian Empire. Unfortunately, it is closed.
Some collectors were upset by this loss of valuable information and vacuumed the site data up.
A Japanese site: http://www.a-saida.jp/ served as a relay for a while, then closed.
There is only one copy left, made by an American: https://kyiv2014.com/copeck/index.html, which could close at any time.
Numista would be a stable haven for this information.
I know, copyright-wise, it's not that simple.






