That there is a bi axle defib muti shifting defunkinator with a swivel calitron semi conductive lateral motion machine made from unobtanium. I hope you got a good deal on it. very rare item.
I don`t have a clue i think it`s an underwater excavator missing it`s tracks. I ve knocked on the door a few times but knowbody anwsers. When they do i`ll let you know.
This is used in underwater salvage. A person gets into it, and is lowered to the ship/area that is being salvaged. A large claw is lowered into the water to pick apart the ship and bring it too the surface. The person looks through those portholes and communicates with the surface through the tether/air/communication lines to the ship above.
There is a muffler shop near here that takes the old mufflers and pipes and makes the craziest things out of them. Usually people and western motif stuff, but every know and then there is something over-the-top. I'll have to remember to take pics next time I drive by.