CORNING PYREX T.M. REG. U.S. PAT. OFF MADE IN U.S.A.
Picture Courtesy Bob Berry
CD 331: USA
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Picture Courtesy Bob Berry |
This high voltage insulator was made by the Corning Glass Works of Pyrex glass. It is numbered 701 indicating a 70KV rating. These were cataloged in carnival but so far have only been found in clear glass. This is the largest single piece glass pintype insulator!
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