U-2321: Germany

3 1/8" X 3 1/8" (80mm X 80mm)

 

No markings

 

Picture courtesy Bob Berry

3 1/8" X 3 1/8" (80mm X 80mm)

 

No markings

 

Picture courtesy Bob Berry

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


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