|
2 1/4" X 3" (56mm X 74mm)
(skirt inkstamp)
Picture courtesy Bob Berry |
U-1652: Unknown
|
2 1/4" X 3" (56mm X 74mm)
(skirt inkstamp)
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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