Does anyone have any historical information, or contemporaneous ship model pics, of a Jacob's ladder used on a polacre-style square-rig pole mast (the yards go up and down) where you have no trees or platforms? Normally one would use "sister hooks" and "eye bolts" but I figure in this case you need legs on top as well as bottom and to wrap them around the mast at both ends collar-style, tie with lanyards. I can't think of anything else that would work here. TYVM in advance!
