U-710 Imperial Porcelain Works, 3 incuse marks, sulfur-cemented metal cap, $75+postage

By Rick Soller; posted April 26, 2021

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U-710. There are three different incuse stamps. One has the Imperial crown logo, one is a date stamp, the third indicates that the insulator was manufactured by Imperial Porcelain Works in Trenton, New Jersey. white porcelain, 3 skirt, recently recovered from a suburban Chicago power house, mint condition. $75+postage. There is a screw hole in the top of the iron cap so this could be mounted to a wall.

U-710 Imperial Porcelain Works, 3 incuse marks, sulfur-cemented metal cap, $75+postage

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