3 3/4" X 4 5/8" (94mm X 116mm)
No markings
Picture courtesy Bob Berry |
3 3/4" X 4 5/8" (94mm X 116mm)
(dome inkstamp) N-95 [Zapel]
Picture courtesy Bob Berry |
U-2137: Poland
3 3/4" X 4 5/8" (94mm X 116mm)
No markings
Picture courtesy Bob Berry |
3 3/4" X 4 5/8" (94mm X 116mm)
(dome inkstamp) N-95 [Zapel]
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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