This is a traditional bowl by Lorriane Williams.  It is a round bowl and has a cloud design around the rim and a mountain design below the shoulder.  There are triangular corrugated areas separating the two designs. The bowl has been traditionally fired.  After the piece is fired it is covered in pine pitch, which is typical of all traditional Navajo pottery harkening back to when it was utilitarian.  Lorraine has won numerous awards for her pottery and been featured in books such as “A Legacy of Generations”.