This is an unusual bowl by Margaret & Luther Gutierrez.  Margaret would make the pottery and her brother Luther would paint the designs using natural clay slips.  This bowl has eight flat sides and there are four different designs.  There is thundercloud, hunter, frog, and thunderbird.  They are each painted with various colors of clay and all the various colors are from natural clay slips and this was a signature style of their work. The bowl is signed on the bottom, “Margaret / Luther”.  It is in very good condition with no chips, cracks, restoration, or repair.