|
2 3/8" X 3 1/4" (58mm X 80mm)
(dome inkstamp) {Giesche, niemen notch}
Picture courtesy Bob Scafe |
2 1/4" X 3 1/8" (55mm X 77mm)
No markings {note niemen notch}
Picture courtesy Bob Scafe |
U-1654: Poland
|
2 3/8" X 3 1/4" (58mm X 80mm)
(dome inkstamp) {Giesche, niemen notch}
Picture courtesy Bob Scafe |
2 1/4" X 3 1/8" (55mm X 77mm)
No markings {note niemen notch}
Picture courtesy Bob Scafe |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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