You may like to take a look at these Argentine mid-twenty century diagram.
http://www.flickr.com/photos/9170448@N03/sets/72157631747322299/ The diagram is a crease pattern with instructions on how to fold it. That made me wonder if anybody know what diagram is considered the earliest crease pattern in history? Note: Paperfolding diagrams were frequently published as bonus instructional sheets in school notebooks, during the 40s and 50s in Argentina. The total of instructional sheets in this series was 16. Laura Rozenberg
