Architectural Letter N from De Divina Proportione by Leonardo da Vinci

These woodcut alphabet illustrations are from  De Divina Proportione ,a book on mathematics written by Luca Pacioli and illustrated by Leonardo da Vinci, completed by February 9th, 1498 in Milan and first printed in June 1, 1509. In De Divina Proportione, Pacioli and Leonardo apply the mathematical Golden Ratio to visual arts, architecture, alphabets, geometric figures and structures. The mathematicians of antiquity and the Greek philosophers were fascinated by this ratio, which appeared to re­flect perfection and divine harmony: hence the use of  “divine” to describe the “proportion” governing this unique re­lationship.

These prints are printed on a fine quality ivory paper.
These are reproductions of old illustrations & in most cases will have the same imperfections as the original.

hence the use of  “divine” to describe the “proportion” governing this unique re­lationship.