A full scale Native American chief greets visitors to the main hall at the Holt Museum, top right. Display cases hold Indian artifacts that became familiar to the explorers as they encountered these tribes. Top left, a breastplate made with hairpipe beads. Above, a bison horn, with woven quills, designed to transport fire. Fine porcupine quill work adorns a martingale used on horses' heads, right. Lewis and Clark bartered for such examples of fine craftsmanship to send to President Jefferson.