CORNING PYREX T.M.REG.U.S.PAT.OFF // MADE IN U..S.A.
Picture Courtesy Bob Berry
CD 235: USA
|
Picture Courtesy Bob Berry |
This low voltage style was made by Corning Glass (Pyrex) and is found in both clear and carnival glass. The carnival coating was most likely used as a marker for high voltage on the same pole as communication circuits.
Return to the National Insulator Association home page