Effigy Raven platform pipe (length 12.2cm), Rutherford Mound, Hardin County, Illinois. Many diagnostic Hopewellian artifacts have yet to turn up at an early Marksville site. Stone platform pipes, such as the exquisite raven effigy from Rutherford, is one example. Although platform pipes are found at Marksville sites in modest numbers, they are normally crude ceramic copies of the northern originals. Illinois State Museum.