One of our guys visited an oil field in southern Russia when the Reds were still in power and was rather startled to find a perfectly functioning early twentieth century oil field -— complete with bull wheels, jack-line rigs, etc. and staffed with more people than we had in the entire western half of the US. It was as though the twentieth century had never happened.
When I visited a Moscow hospital in the seventies, the equipment looked like it was from the forties.