These coins seem to be hard to find. Much harder to assemble as a set. Fair enough, if you fork out hundreds of dollars, you'll definitely get nicer ones. Nevertheless, here's a couple of them. If I am not wrong, these were struck in Leningrad. One year coinage. An interesting era of coinage where Tuva tried to declare independence and now is a part of the Russian Federation.
Way cool. I was interested in these even before Richard Feynman made a trip over there. It's still a highly inaccessible place.