Ed Leedskalnin building Coral Castle

I have written permission from Daren Nemith to use this video he discovered from an old film archive.
You'll find it interesting that the 2 stones Ed moved using block and tackle as you see here have marks in them unlike any other of the stones. This was put on as a show to keep people from spying on him, so he could actually finish the castle. At one point, 2 small boys did however to sneak up on Ed in the middle of the night as he worked and reported Ed holding what looked like a pair of ice cream cones, one in each hand, as he moved a megalithic stone as if it were a balloon.
In 2012, we reverse engineered this masterpiece. I have the complete circuit design drawn up in c.a.d. using Blender.