Although there are many ways to secure the insulator to a tree this depicts the method using manufactured hardware for the task. Wire rope of varying lengths have one end double wraped around the porcelain split ring insulator and the other end is double wraped around the wire rope thimble. The thimble end is then hooked onto the hanger bracket which has been driven into the tree. In the Hubbard Catalog No. 50, copyright 1950, page 82, there is listed the "Hubbard Forest Service Tree Hooks" described as follows: "Tree Hooks are much used for running communication lines, mainly in forests. They are formed of 3/8-inch round steel with a protruding drive head. Clearance is provided for driving. They are most often used with a small split insulator suspension of some sort, although for temporary communication systems, wires may be strung through the hook itself."