Vintage Kachina Doll Signed Paki Buffalo Head Leather Clothing

To be totally honest I don't know anything about this doll. I tried to do some research but was unable to determine its history. I Think it is a really cool unique piece. The leather pieces need some cleaning and one set of the beads need re-glued to the back of his head. The base is a rock of some sort, and someone applied felt the signed it Paki. Please see photos for details, sold as is.