2 3/4" X 3 7/8" (68mm X 100mm)
No markings
Picture courtesy David Kresz |
2 3/4" X 3 7/8" (68mm X 100mm)
No markings
Picture courtesy David Kresz |
U-1692: France
2 3/4" X 3 7/8" (68mm X 100mm)
No markings
Picture courtesy David Kresz |
2 3/4" X 3 7/8" (68mm X 100mm)
No markings
Picture courtesy David Kresz |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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