We use authentic barrel lids and stamps to create our clocks. We offer 4 ways to design the numbers on the clock around the stamp that is on the perimeter of the barrel lid. Roman numerals, numbers, dots, or nothing. We apply polyurethane to it to provide a natural look. We put 1/2″ plywood on the back to keep the lid from falling apart and prevent warping. It easily hangs with a sawtooth picture hanger. Drywall anchors and screws included with the clock to mount on your wall.