Sih-Chidä & Mahchsi-Karehde (Mandan Indians), hand-colored engraving with aquatint, OC268-16
Pehriska-Ruhpa (Minatarri Warrior in the Costume of the Dog Dance), hand-colored engraving with aquatint, 20 5/8 x 15 13/16 inches, OC268-17