PG&E Sign
By William Burger; posted February 2, 2014
View Original: Click to zoom, then click to magnify (1472 x 1040) 476KB
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Although not an insulator, here's a PG&E sign on an Oregon substation (circa 1982) |
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Although not an insulator, here's a PG&E sign on an Oregon substation (circa 1982) |