Illustrated Protestant ladder used for the teaching of the catechism in the mission of Henry H. Spalding and Eliza Spalding at Lapwai in present-day western Idaho in the traditional territory of the Nimi’ipuu (Nez Percé). The ladder depicts religious history and biblical concepts with captions in English and Nimipuutímt. The ladder is painted on cloth-backed paper using ink and berry dyes.