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3" 1/8 X 3 1/8" (77mm X 77mm)
(crown incuse) 708o11
Picture courtesy Bob Berry |
U-2279: Czechoslovakia
|
3" 1/8 X 3 1/8" (77mm X 77mm)
(crown incuse) 708o11
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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