This is a Red Wing salt glaze crock, a "Success Fitters" Natural Tripoli stone, patented July 7, 1889. It is the bottom portion of a two piece, with a wooden cork. It measures 14 1/4" top diameter and is 17" tall. No chips, cracks or breaks, this is a mint piece with great detail.
Red Wing Salt Glaze Crock - "Success Fitters" Bottom Portion - July 7/89