These are a vintage used pair of antique parts from a wood burning heating stove.   These are trim or kick rails from lower part of stove.  These are made of cast iron and are marked REX-48 in raised lettering.  Rails have to mounting tabs.   Rails are 16" in length, measured on a straight diagonal.  Mounting tabs are 11.5" apart, measured from top outside of each tab on a straight diagonal line.   These show some age and use wear, with loss of plating, and surface oxidation.  There are no chips, cracks, batters, welds, breaks, repairs, or off odors