This is a steel cable and pully in an old 1900's mine complex I was working at today. I'm standing at the top of the platform some 40ft above the ground. The cable is shooting down towards the old engine that would work the pulley, and the other end of the cable is lowered into the mineshaft itself. Wish I had more light to work with, it was pretty dark in the building, and just at work, I didn't have a tripod or any lights other than just a small LED flashlight. I'm going back tomorrow and might try and take some pics of the outside of the building.