This is an exceptional corrugated jar by Mary Ann Hampton.  She was known for her painted and corrugated pottery. This jar is coil built and the lower half is plain, At the shoulder, there is a slight indention and then there are eight rows of corrugation.  The corrugation is impressed in a triangular shape.  The result is a striking appearance as it seems as if each row overlaps the one below. The neck is plain with a slightly turned-out rim.  The entire piece was traditionally fired, so there is some slight color variation from the fire.  The jar is signed on the bottom, “Mary Ann Hampton”.  It is in excellent condition with no chips, cracks, restoration or repair.