At the moment my interests lay in Russian Numismatics, mainly copper coins (as less expensive alternative to gold and silver, with platinum to top it) ...  🙂  At the moment I am into Denga coins of 1730-1754.

I managed to identify the type of a very first denga of 1730 and progress now on eagles' evolution from 1730 to other years.  It is an exciting subject for me and I recently published an article about this in Russian "Petersbug Collector" magazine.

Copies and fakes of Russian coins:

One of the important things that people face, when collect coins are - forgeries and copies.  I had a pleasure of helping to build a database of images of some Russian fake, counterfiets and copies on rNumis.  You may find it helpful: http://www.rnumis.com/rnumis_research_0.php check it out. 

Also, one of the easiest and user-friendly catalog stile coin identificator that may help you to ID the coin is here: http://www.m-dv.ru/monety-rossii-1700-1917/kid,8/mid,4/nid,34/types.html