U-1540: Germany

3" X 4 3/4" (73mm X 116mm)

 

(front skirt incuse)

                           JS609

                           38

{Stemag}

 

Picture courtesy Bob Berry

3" X 4 3/4" (73mm X 116mm)

 

(front crown incuse)   

{Julius Hering & Sohn}

.

.

 

Picture courtesy Bob Berry

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


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