U-2895A: England

2 3/4" X 3 1/4" (70mm X 83mm)

 

(dome incuse) JOHNSON & PHILLIPS / PATENT / No 110

{Maker unknown}

 

Picture courtesy Lee Southern

This is an oil insulator with the outer skirt turned under to provide a reservoir for insulating oil.  

U number assignment by Bob Berry April 2020.


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