Two Plains Indian Catlinite Books and a Catlinite Turtle

Two Plains Indian Catlinite Books and a Catlinite Turtle, c. 1900, the turtle with an incised design on the shell and "Winona a Sioux" inscribed on the underside; a second book decorated with floral designs and the word "Book" on the front cover; and a book form with a scene of European contact with native people on the front, old label verso reads "Sioux near Sioux River, S. Dak," lg. 5, 4, and 4 3/8 in.