|
2 7/8" X 4" (71mm X 101mm)
(crown inkstamp)
Picture courtesy Bob Berry |
2 7/8" X 4 1/8" (72mm X 104mm)
No markings
Picture courtesy Bob Berry |
U-1705: Germany
|
2 7/8" X 4" (71mm X 101mm)
(crown inkstamp)
Picture courtesy Bob Berry |
2 7/8" X 4 1/8" (72mm X 104mm)
No markings
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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