This is a striking combination of shape and firing by Samuel Manymules.  The jar is coil built and slipped with a red clay and then traditionally fired.  The jar has rounded ribs which billow up from the base and get larger as they reach the neck.  Each rib is pushed out from the inside of the jar as the piece is made.  The round ribs are in contrast to the sharp ridge before the neck and rim, which is slightly turned out.  The jar is polished and it is traditionally fired outdoors.  The coloration, which ranges from red to black to tan in areas.  The color changes as the jar is turned and the strong black areas seem to perfectly enhance the shape of the ribs.  After the firing the jar is the covered with pine pitch in the traditional way expected of Navajo pottery.  It is extraordinary vessels like this which keep Samuel among the top Navajo potters working today.