|
3 3/8" X 6" (86mm X 152mm)
No markings [dry process]
Picture courtesy Mary Ann Pike |
U-1737: Unknown
|
3 3/8" X 6" (86mm X 152mm)
No markings [dry process]
Picture courtesy Mary Ann Pike |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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