It looks like one of those underwater naval mines from WW2. It will be hollow, so that it would float, and has an attachment that would have moored it to the seabed.
The pictures I have seen of those sort of shipping mines had protrusions on them
I don't think it's a mine because it doesn't have those protrusions. It looks more like this mooring buoy. .
mooring buoy
with the connections on top and bottom?
They were deep-sea submersibles which were unpowered and lowered into the ocean on a cable, and used to conduct a series of dives off the coast of Bermuda from 1930 to 1934. See this image:
Godzilla egg.
ChyNeez spy balloon --- marine division,
It looks like one of those underwater naval mines from WW2. It will be hollow, so that it would float, and has an attachment that would have moored it to the seabed.
The pictures I have seen of those sort of shipping mines had protrusions on them
https://en.wikipedia.org/wiki/Naval_mine
I don't think it's a mine because it doesn't have those protrusions. It looks more like this mooring buoy. . mooring buoy with the connections on top and bottom?
Perhaps a Bathysphere or part of a Bathyscaphe.
They were deep-sea submersibles which were unpowered and lowered into the ocean on a cable, and used to conduct a series of dives off the coast of Bermuda from 1930 to 1934. See this image:
https://blogs.loc.gov/now-see-hear/files/2015/01/bathyrefurbhalfmiledown00beeb_0296rev1.jpg
Its what the Biden administration would call a Unidentified Floating Object or UFO. Normal peeps call it a buoy.
It looks like a buoy. Its chain may have rusted off.