U-1692: Switzerland

2 3/4" X 3 7/8" (67mm X 95mm)

 

No markings

.

 

Picture courtesy Bill Ostrander

2 3/4" X 4" (67mm X 100mm)

 

(ear incuse)

 

Picture courtesy Bob Berry

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


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