U-2895: England

4 1/4" X 4 1/4" (108mm X 108mm)

 

(dome) JOHNSON & PHILLIPS / PATENT

{Maker unknown}

 

Picture courtesy Elton Gish

4 1/8" X 4 3/8" (105mm X 111mm)

 

(dome) No. 90

{Maker unknown}

 

Picture courtesy Russ Firth

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 2016.


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