U-1710: Poland

3" X 4 1/4" (74mm X 104mm)

 

 (front dome inkstamp)

     (rear dome inkstamp)     F      

{Giesche}

 

 

Picture courtesy Bob Berry

3" X 4 1/4" (74mm X 104mm)

 

 (front dome inkstamp)

     (rear dome inkstamp)

{Giesche}

 

Picture courtesy Bob Scafe

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


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