American Native Feathers Pottery Bowl Bird

Great looking piece of old pottery, the only mark is the number 30 then I can’t make out the last number or letter. Definitely has some good age to it, lid was lost at some point. Stands about 6 3/4” tall and is about 8 1/2” wide at widest point. It all appears hand painted, each bird is slightly different. Great overall condition with no chips, crack or defects, missing lid.