There is a commemorative rouble on sale:
http://www.djcoins.com/rus2/6.htm
To be honest, I donīt like it and would not buy. What confuses me, are black areas between the letters. It may be silver oxide remainings from the casting. I have a better example, so I don't need it, it's just interesting: what do you think about this coin?
PS I paid for mine 3 times less