on Oct 22, 2016
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Known Information
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This Reddish Wooden BOX measures 7 1/4 inches square and 3 7/8 inches high, not counting the plates, knobs and brass strap holders
The Largest Plate is rectangle measuring 4 3/8 x 1 7/8 inches
There is another smaller plate on the top that reads: /Made By Keystone Electrical Instrument Co/Philadelphia,PA/Patented Aug 4,1903-Dec
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