U-710. There are three different incuse stamps. One has the Imperial crown logo, one is a date stamp (1 7 99), the third indicates that the insulator was manufactured by Imperial Porcelain Works in Trenton, New Jersey. There are four faint or missing areas in the incuse embossing: "Trenton NJ, is very faint; date stamp, "99" is faint; under the crown reads, IMPERIAL PORCE"; clear outline of the crown, very faint detail within the crown. The insulator is in very good condition. This piece was recently found in a barn in western Vermont.

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