I bought this tool as a working unit, and you can see all parts are in excellent shape, even original hairsprings are included! If you have a vintage gauge in which the needle doesn't "bounce" or return to zero correctly typically the hairspring will need to be replaced. You could use this to restore those gauges at home and the tool would pay for itself. This is an amazing survivor service tool that should go to a home that will appreciate it.
I'd put it in a glass case and display it in my office... The item "Vintage 40's Stewart Warner Gauge Magnet Tester/ Hairspring Selector Tool COOL" is in sale since Thursday, September 3, 2020. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Gauges". The seller is "the62novawagon" and is located in San Jose, California.
This item can be shipped worldwide.