HEAVY, CAST IRON, WITH RED ENAMEL COATING, WOOD BURNING STOVE.  I THINK THESE STOVES WERE BUILT TO USE EITHER WOOD OR COAL, BUT DO NOT KNOW THAT FOR SURE. THIS IS A BEAUTIFUL STOVE.  THE INFORMATION SHOWN ON THE METAL PLATE ON THE FRONT: 

     ESTATE HEATROLA
   "REG. U.S. PAT. OFF."
             No 4D
      Patents Pending
 THE ESTATE STOVE CO.
     HAMILTON, OHIO

THE ESTATE STOVE CO. OPERATED IN HAMILTON, OH. BETWEEN 1905 & 1962.  I UNDERSTAND THE MODEL 4C WAS BUILT AROUND 1927, SO THIS 4D WAS PROBABLY BUILT AFTER THAT.

THE STOVE IS 23 1/2" SQUARE X 51" TALL

THE THIRD PICTURE IS FROM THE BOTTOM, WITH THE TRAY FOR THE ASH REMOVED, THE SECOND PICTURE IS THE TRAY FOR THE ASH, THE LAST THREE ARE FROM THE TOP, WHERE THE WOOD IN PUT.

620-276-3045.  IF NO ANSWER, PLEASE LEAVE A CALL BACK NUMBER.