U-1940: England

3 1/4" X 4 3/4" (79mm X 116mm)

 

(front skirt) 19 61

             MADE IN ENGLAND

(rear skirt) ESR                 

{Bullers, Egyptian State Railways}

 

Picture courtesy Bob Berry

3 1/4" X 4 3/4" (79mm X 116mm)

 

(front skirt)

                  P.8411

{Bullers}

 

 

Picture courtesy Bob Berry

This is a dryspot insulator where the top unscrews to expose openings inside the skirt to allow a telephone drop wire to pass through the insulator to provide a "dry spot" from rain and decrease leakage loss.  The cap is made of a composition material.  

U number assignment by Bob Berry April 2016

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