U-3107: Poland

5 3/4" - 5" - 4 5/8" X 6 1/4" (145mm - 127mm - 123mm X 158mm)

 

(crown incuse)

                        VHD15

{Jedcina Zdroj}

 

Picture courtesy Bob Berry

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


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