The item you are bidding on is a Vintage Kollsman Aircraft Cockpit Clock Gauge. The Clock Gauge is in great shape. All of the hands and the turning knob move smoothly and function properly when moved manually. The gauge has not been tested so I am not certain if it works when hooked up. The gauge is in great cosmetic shape and has very few to no imperfections. Please let me know if you have any questions and I will get back to you as soon as possible.