56 lb rail - branded "A B"

From: "Chris Graves" caliron@att.net

A few days ago a piece of 56 lb. pear rail was found near the old CPRR grade in Eastern Nevada, this rail branded A. B. It is wrought iron, but NOT DATED.

Does anyone have any idea as to the rolling mill that branded rail A. B. ?

—G J Chris Graves