This vintage vacuum and fuel pump tester by Stuart Mfg Co is a must-have for any steampunk enthusiast. Made in the United States, this untested piece is a unique addition to any collection. The tester comes with a hook to hang it conveniently and is perfect for diagnostic service tools in the automotive industry. The brand name speaks for itself in terms of quality and reliability. Don't miss out on the opportunity to own this one-of-a-kind item. See photos !