Загадочный аппарат со дна мертвого озера в Олонецкой губернии

However, persistent S. organized a survey of the bottom of the reservoir using infrared radiation equipment and finally achieved his goal! The devices "saw" metal structures of unknown origin under the water of Kuolajärvi. They turned out unclear in the pictures, but these fragments did not look much like a boat. No rust was found on the iron.