Donald Montileaux (Oglala) "Elk's Lodge" Prisma colored pencil on antique ledger paper 18"x24" Donald Montileaux (Oglala) "Dream of Buffalo" Acrylic on canvas 18"x24" Donald Montileaux (Oglala) "I Dream of Colored Buffalo" Prisma pencil on antique ledger paper dated 1872 18"x24" Donald Montileaux (Oglala) "I Dream of Colored Buffalo" Prisma pencil on antique ledger paper dated 1872 18"x24"