The WW2 Grumman Avenger Aircraft Altitude Limit Switch, Manufacturer Part Number SA-1/ARN-1, is a vintage aircraft part originating from the United States. This switch is designed for controlling the altitude limit of the aircraft, ensuring a safe and reliable flight experience. It is a genuine part that adds authenticity and functionality to aircraft restoration projects or military history enthusiasts looking to recreate the experience of flying a WW2 Grumman Avenger Aircraft.