The Chiropractic Chart was drawn by Ralph Stephenson in 1926. It was advertised for a few months that year. No known copies of the poster exist. This reproduction was developed by The Institute Chiropractic. It is printed on 100 lb. matte paper, rainforest certified, black and white. It is a must have for all chiropractic offices. The poster provides an easy way to link each patient case to the neurophysiology of vertebral subluxation and the philosophy of chiropractic.