|
2 7/8" X 4 5/8" (71mm X 113mm)
(skirt inkstamp) NO. 1 JAPAN {NGK}
Picture courtesy Bob Berry |
U-1452: Japan
|
2 7/8" X 4 5/8" (71mm X 113mm)
(skirt inkstamp) NO. 1 JAPAN {NGK}
Picture courtesy Bob Berry |
U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.
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