Andrew,
 
Larry Dorherty of F.A.E.  is a wonderful resource for information and
contacts with Russian Museums. He has set up a cultural exchange program, and
does a considerable amount of work with the museums and institutions in St.
Petersburg and Moscow.
You can reach him at:
F.A.E.
251 Heath Street
Boston, MA 02130
617-566-1155
 
I hope this helps,
B. Lee