N-TBD: United States (USA)

3 7/8" X 3 3/8" (99mm X 86mm)

 

(iron casting embossed)

                                     335-1

(base around pinhole) DIRICO OBCo. DIRICO  OBCo

 

Picture courtesy David Kresz

This is a feeder cable insulator made with cast iron over a composition base.


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