N-TBD: United States (USA)

2 3/4" X 4 3/8" (70mm X 112mm)

 

(embossed around pinhole)

ALBERT AND J.M. ANDERSON

MFG Co BOSTON MASS

AETNA

(casting embossed) 1157

 

Picture courtesy Bob Berry

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


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