Guillermo Cuellar shino bowl.  I purchased this bowl at a shino exhibition in the Twin Cities during the NCECA conference a few years back.  Height is 3.5 inches by 5.5 inches wide (9 cm by 14.5 cm).  The bowl has his stamp (GC) on near the foot ring.  He is a  potter north of the Twin Cities in Minnesota.  This bowl has not been used.