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2 1/8" X 2 3/4" (54mm X 70mm)
No markings {Illinois Porcelain}
Picture courtesy Bill Vincent |
U-11: USA
|
2 1/8" X 2 3/4" (54mm X 70mm)
No markings {Illinois Porcelain}
Picture courtesy Bill Vincent |
U number assignment by Jack Tod.
Return to the National Insulator US Unipart page