I remember the story going around the traps (here, perhaps?) a couple of decades ago, about a country formerly behind the iron curtain. When the Soviet Union crumbled, the JWs were able to re-establish contact with the underground JW movement. The story, as I remember it, is that the JWs of that country were still practicing watchtowerism as it was when they were still in contact with Bethel, which was when Rutherford was still alive and kicking! The WT doctrine and practices had changed so much that the country's witnesses rejected the GB and any post Rutherford reforms and continued doing things the way they had for fifty or sixty years.
I'm thinking that the country was Georgia, but it may be Romania. I've tried googling, but haven't been able to find anything concrete yet. Does anyone remember that particular story?