U-3071: United Kingdom

4 1/2" X 5" (114mm X 127mm)

 

(crown incuse front)         

(crown incuse back)        P-5664

{Made by Bullers in England, found in New Zealand}

 

Picture courtesy Bob Scafe

4 5/8" X 5 1/4" (116mm X 130mm)

 

(top skirt inkstamp)  

                               6M78

{Allied Insulators}

 

Picture courtesy Bob Berry

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


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