Bulgarian minelayers and minesweepers according to a C.I.A. report dated 13 November 1952

An item reported around 30 minesweepers of various tonnage in service. Six were allegedly motor launches handed over by the Soviet Union which could be original part of the Kriegsmarine air support. Three minesweepers were allegedly fitted out as minelayers.

Source

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