Bulgarian Naval Command according to a C.I.A. report dated 13 November 1952

An item reported that the Command of the Bulgarian Black Sea Fleet with her headquarters located at Varna and directed by frigate captain Paraskevov consisted of a surface division with her headquarters at Varna and a submarine flotilla with her headqarters at Ochakov, Soviet Union.

Source

C.I.A. report no. CIA-RDP83-00415RO12700120006-1