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This is a piece of vintage equipment to gauge Bell system dry batteries. It states to "connect to battery and read at end of one minute." It comes with a small bag. It may be for checking the old crank telephones. I do not know if it works. It has a loose cover.
(Vintage battery gauge for bell system dry batteries was posted and is owned by: Casey Ball) |
c_ball@chicagopartsnetwork.com (Casey Ball) for more information.
