U-2279: Russia

3" X 3 1/4" (74mm X 80mm)

 

 (skirt incuse)

{Maker unknown}

 

Picture courtesy Bob Scafe

3" X 3 1/8" (74mm X 78mm)

 

 (skirt incuse)

{Maker unknown}

 

Picture courtesy Bob Berry

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


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