I saw the piece about the thirteen year old collector in Siberia looking for coins for his club. One place I would suggest that they check out is the American Numismatic Association Young Numismatist program, because they know how to encourage and support collectors that age and they might have some ideas of Russian coin clubs that they can join and support.

I also found on the internet a website for The Russian Numismatic Society (RNS). It is a US-based club for collectors of Russian coins. From how their website looks I'm not sure how active the club is but there is contact information. The officers of the club might be able to steer them in the right direction.

Unfortunately there are any number of restrictions on what can be mailed through USPS, one of which is foreign currency. See the following link for international restrictions: http://pe.usps.gov/TEXT/IMM/ps_013.htm#ep1603920 .

Now I'm not saying a delivery would not get there, it just runs the risk of seizure. This regulation is probably in place to keep large amounts of cash from being transferred illicitly, not the occasional numismatic specimen, but that is all up to the postal inspector to decide. Otherwise, there is always UPS or FedEx, if they deliver to such remote locations, but I could only imagine at what cost that would come.