I'm not very well versed in ocean life, but how is it possible for a structure to remain as clean as the one shown in the images? It certainly looks like some sort of conning tower, but no growth can be seen at all. The close ups of the alleged "cyrillic letter" do show some growth (or possibly just silt).
And again, the sonar profile of the thing looks distinctly WW2-ish, but I don't know the angle it is taken at. Very interesting.
@Aktungbby
"This end" is what end? Germany?
