It’s a sugar lump with a promotional wrapper for the Russian railway. We travelled on this train in the 1980s. But, the wrapper looks as though it was designed earlier than that. I remember that the Russian trains were big old things and not quite as streamlined as the drawing suggests.
Back in the day, there were lots of things to collect…advertising key rings, sugar lumps with promotional wrappers and cocktail bar matches. All of these things seem to have disapperared!
That’s a shame.