I have a silk Geisha doll, recently acquired. The doll has human hair, silk fabric construction, silk clothing, and is posed in a sitting position. The doll has apparently been sitting in an attic or somewhere that it collected a layer of brownish dust. The doll has seen a little wear and tear, but given the presumed age (around WWII) and the ages of the previous owners, some of this is expected.
The doll is attached to a light "paperboard" foundation covered in a fine bamboo weave trimmed in fabric. This strikes me as rare because I had no success finding any Japanese Geisha doll images on the internet that resembled this one, clothing colors notwithstanding.