|
2 3/8" X 4" (58mm X 102mm)
(skirt
incuse) P & T /
Picture courtesy Bob Berry |
2 3/8" X 4" (58mm X 102mm)
(dome inkstamp) GPO
Picture courtesy Bob Berry |
U-1546: United Kingdom
|
2 3/8" X 4" (58mm X 102mm)
(skirt
incuse) P & T /
Picture courtesy Bob Berry |
2 3/8" X 4" (58mm X 102mm)
(dome inkstamp) GPO
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators 1986 Supplement by Marilyn Albers & Jack Tod.
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