Photos Submitted for Appraisal
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I bought this thing at an estate sale because no one running the sale knew what is was. They took my $5 offer. The base is about 2.75" x 5.5" and seems to be made of bakelite. The +/- terminals indicate it would be connected to a direct current power source (battery?). Turning the knob at the top raises it up and down. There is a plastic cap over the top, left removable probe type thing. When lowered all the way down the probe is still about 3/4" from touching the left pedestal. A magnet will not stick to any of the metal surfaces which indicates the metal might be stainless steel.
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