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2" X 2 5/8" (51mm X 67mm)
(skirt inkstamp)
Picture courtesy Bob Berry |
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U-1633: Portugal
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2" X 2 5/8" (51mm X 67mm)
(skirt inkstamp)
Picture courtesy Bob Berry |
|
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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