It is but a small booklet, but it is one of the prized possessions in my library: "Three Paces beyond the Horizon". Many years ago, as a High School student having to write an essay about the USSR, I simply wrote the Embassy in Brussels for material and true enough, they sent me a stack of books and pamplets dealing on a wide range of topics - among them "Three Paces...":
It jibes with Mr Dodd's brilliant video. Never underestimate Russian engineering!
MFBB.