Kollsman Rate of Climb Vert Speed Indicator O-2000. Overall very good condition, case in good condition no obvious indication of damage. Fits the standard 3 1/8instrument panel opening. The glass is clean and clear, the face, numbers, pointer and data plate are intact and readable. The condition is unknown, not tested, the tube at the rear is capped. Fits the standard 3 1/8 instrument panel opening. The data plate states that it is an SAE A5393, CAA TSO C8a. A classic 2000 FPM gauge. No returns, sold “as is where is”, no sales outside the US and no sales to non-US citizens. Shipping $22.00