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> Vintage weston portable wattmeter
Vintage weston portable wattmeter
Weston Electrical Instrument Co.
Below that it list 6 patent dates, ranging from Nov 11, 1890 to Mar. 22 1898.
This is all I know about the meter. It is by no means in perfect condition, but is a unique piece of vintage electrical equipment. Please email me with any questions, and I'll do my best to answer them.