An item reported that this island (1)
was a Soviet military zone with as known industry a coal mine, a rock quarry
and a small repair shipyard for ships coming for and going from the coal mine.
Note
1. The St. Anastasia island in the Black Sea on a
distance of 1,4 kilometres off the coast near Chernomorets, used as a prison
since 1923 and later also known as Bolshevik Island?
Source
The report was published on
www.archive.org, document number CIA-RPD80-00810A000500330005-5.