This is an exceptional and unique larger bowl by Joseph Lonewolf form 1971.   It is very highly polished and has the classic water serpent (avanyu) etched into the clay.  Note that it is the gray area which is etched and the polished area makes up the avanyu!  It still has a great polish so the design is difficult to see in the photos.  However, note that Joseph always used the feathered water serpent, which is different in style from the others used at Santa Clara Pueblo.  This bowl is also historically important relevant to the signature on the bottom, as it is actually before he began to number his pieces!  It is in excellent condition with no chips, cracks, restoration or repair.  It is signed, “Jospeh Lonewolf”.