Precise 1995 reprinting by Toppon Printing in Japan. Like most others from this company, with a set edition of 200, cannot be told from the originals. This one is Will Burtin’s 1959 design promoting an Upjohn Pharmaceutical Company exhibit for the brain. The complex abstractions represent the complexity of the brain’s functions, and the exhibit itself consisted of a large model being used to explain how the mind works to the public. Mint.