"Unzhlag’s hospitals were famous for their doctors. Uncle Borya was one of the best. In 1937 as an amateur stamp collector in Yaroslavl, he was invited to a philatelic congress in Sweden, and sought the advice of the authorities. He was thereupon arrested and beaten. Trying to get him to ‘confess’, the security police broke two of his ribs and one of his fingers, and pulled out one of his fingernails. After Yezhov was removed as head of the NKVD, Boris was freed. But a year later he was arrested again for telling the doctors who treated him for his injuries how he had come to receive them. Without much further ado he was sentenced to eight years. In the camp Uncle Borya continued to collect stamps, but only those of pre-revolutionary Russia and the Soviet Union."
In the days before the Soviet Union welcomed stamp-collecting as a tool for educating the masses, the hobby could get the unwary follower into serious trouble. Here is an extract from the dissident Lev Kopelev's memoir No Jail for Thought, published in the UK in 1979. The Unzhlag was a complex of prison camps.
"Unzhlag’s hospitals were famous for their doctors. Uncle Borya was one of the best. In 1937 as an amateur stamp collector in Yaroslavl, he was invited to a philatelic congress in Sweden, and sought the advice of the authorities. He was thereupon arrested and beaten. Trying to get him to ‘confess’, the security police broke two of his ribs and one of his fingers, and pulled out one of his fingernails. After Yezhov was removed as head of the NKVD, Boris was freed. But a year later he was arrested again for telling the doctors who treated him for his injuries how he had come to receive them. Without much further ado he was sentenced to eight years. In the camp Uncle Borya continued to collect stamps, but only those of pre-revolutionary Russia and the Soviet Union."