These are original pieces of rare black on black pottery by a San Ildefonso Native American Indian artist. The lot includes two original pieces showing a traditional black on black design. Both pieces were authenticated at the Antiques Roadshow in Billings, Montana and given a generous valuation (paperwork not included). Both pieces are faintly signed across the bottom in graphite and indistinguishable. These are believed to be from circa 1940-1960’s. Larger Bowl is 7" diameter and 4" tall. Smaller Bowl is 4” in diameter and 2.75” tall.