VTG Joy Navasie (Frogwoman) Hopi Wide Bowl, White Polychrome circa 1970 5″ x 7.5″. About the artist: Frogwoman – Joy Navasie. Was known for her white slipped pottery and classic use of design elements. She learned to make pottery from her mother, Paqua, who also used the white clay and signed with a frog as a hallmark. The white kaolin clay is a slip that is applied to the surface of the bowl, and then black and red clay slips are used for painting. Joy’s pottery is iconic among the Hopi white slipped pottery, and her work can be found in numerous books and museums worldwide. Please review pictures and video carefully to view small imperfections. The cards in the pictures were provided by the previous owner.