|
2 3/4" X 4" (67mm X 102mm)
No markings {Dry Process}
Picture courtesy Bob Berry |
U-1692: United States
|
2 3/4" X 4" (67mm X 102mm)
No markings {Dry Process}
Picture courtesy Bob Berry |
Note thes were believed to have been made by R. Thomas & Sons for export to Europe - it is not sure what countries used them.
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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