U-2137: Poland

3 3/4" X 4 5/8" (94mm X 116mm)

 

 

No markings

 

 

 

Picture courtesy Bob Berry

3 3/4" X 4 5/8" (94mm X 116mm)

 

(dome inkstamp)

                          N-95

[Zapel]

 

Picture courtesy Bob Berry

U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.


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