Original Vintage Aero Equipment Corp. Regulator-Diluter Demand Oxygen Pressure Breathing- Type A-14, this regulator is in overall very good condition, showing some light signs of wear to the exterior from handling/use and storage throughout the past 50+ years. There is a 1969s dated test/inspection decal applied to one side from German Air Force , all of the hose fittings are in good condition, and all of the knobs/levers appear to be moving appropriately, the unit has NOT been tested and is being sold as a vintage aviation collectible, not for actual use,