The Vintage Mac Tools Engine Vacuum & Fuel Pump Tester from 1956 is a specialized gauge designed to measure engine vacuum and fuel pump pressure in gasoline vehicles. Made by the reputable brand Mac Tools in the United States, this tester includes multiple measure scales and can gauge up to 300 PSI. It is a valuable tool for diagnosing and servicing passenger vehicles, providing essential information for ensuring optimal engine performance. While it does not come with a warranty, this reliable and durable tester continues to be a useful accessory for automotive enthusiasts and professionals alike. Gauge works but has some peeling on the inside of face of the gauge. being sold 'as is'. Would make a nice addition to a vintage automotive tool collection.