This is a classic polychrome bowl by Blue Corn.  Blue Corn began by making black-on-black pottery but it is her polychrome potter for which she is the most famous.  This bowl is fully polished tan and painted with black and ochre-colored clays.  The design around the rim is a rain and cloud design.  ARound the body of the piece are squares which represent corn while they are separated by star designs.  It is signed on the bottom in the clay, “Blue Corn”.