It's a cage put over coffins/caskets and pushed into the soil to keep them from popping up out of the ground in case of flooding or in areas where there is a high water table.
Paul Bunyon used this in his logging business. He shot the harpoon to attach rigging to very tall tree, then attached the rigging to Babe the Blue Ox to pull logs from very steep hillsides.
MMM.....Pi, Serene Green, Ladies L
MMM....Pi, Serene Green, Ladies L
MMM...Pi, Serene Green, Ladies L
MMM..Pi, Serene Green, Ladies L
MMM....Pi, Ladies L, Serene Green
MMM....Pi, Ladies L, Serene Green
MMM...Pi, Ladies L, Serene Green
MMM..Pi, Ladies L, Serene Green
MMM...Pi, Ladies L, Serene Green
MMM..Pi, Ladies L, Serene Green
MMM......Pi, Ladies L, Serene Green
MMM.....Pi, Ladies L, Serene Green
MMM....Pi, Ladies L, Serene Green
MMM...Pi, Ladies L, Serene Green