|
2 3/8" X 3 1/4" (60mm X 83mm)
No markings
Picture courtesy Bob Berry |
U-1658: Russia
|
2 3/8" X 3 1/4" (60mm X 83mm)
No markings
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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