Coast artillery emplacements built between Obzor-Nos Emine, Bulgaria according to an American CIA report dated 7 April 1954

An item reported the presence of coast artillery emplacements at the coast at Obzor (geographic position north 44.49 and east E 27.52) 40 metres above the sea level beginning around 2 kilometres south of the town stretching over a distance of 12 kilometres ending at Nos Emine (geographic position North 42.42 and East 27.54). To accommodate the personnel were at several places on a distance of 40-50 metres of the emplacements wood-built barrack with the dimensions 20x7 metres built. To prevent unpermitted entering the area was over the whole length of the 12 kilometres a wire fence supported on stakes placed.

Source
The report was published on www.archive.org, document number CIA-RPD80-00810A000500340010-8.