CD 638.5: Russia
6 3/8" X 6 1/4" (161mm X 158mm)
(front skirt) WC-10T "JT in a triangle" 79
Picture courtesy Tommy Bolack
This was made in western Russia by the LVIV INSULATOR PLANT started in 1965 and later became the LVIV INSULATOR COMPANY in 2002. In their catalogue it is called an SS 10D HIGH VOLTAGE insulator
Note: Original CD assignment from Glass Insulators From Outside North America published in 1993 by Marilyn Albers & N.R. Woodward.
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