A paperfolding paradise
The website of writer and paperfolding designer David Mitchell
|The Square Letterfold|
page attempts to record what is known about the origin
and history of the origami design known as the Square
Letterfold. Please contact me if you know any of this
information is incorrect or if you have any other
information that should be added. Thank you.
The earliest evidence for the existence of this design that I know of comes is an undelivered letter found in the Brienne Postal Archive. The date if 1694 can clearly be seen in the botytom left corner.
According to https://vimeo.com/189352737 'The author, a man called Leendert Jansen van Muers, is a Dutch soldier writing to his wife back home in The Hague. He tells a sorrowful tale; he has been taken prisoner by the French on 29 July 1693, during the Battle of Neerwinden, one of the most famous encounters between the French army and Dutch-English forces during the Nine Years War (16881697). Leenderts son Hans was fighting alongside him, but he doesnt know what has happened to him, hoping his son has made it safely back home to The Hague. Leendert is begging his wife to send him news. Hes having a hard time in captivity, beautifully capturing the sense of loss and displacement as he writes: I wished with Gods help that I were with you again, because my heart is aching to be separated from you, in a country and under a people whose language I nor my fathers ever knew. Forced to enlist in the French army for two years, he is hoping it will soon be peacetime again, allowing him to return home.'
As far as I know formal instructions / diagrams for folding this design first appear in 'Leichte Künsteleien zum Vergnügen und zum Nutzen für Kinder und Richtfinder' by Heinrich Rockstroh, which was published in Berlin by Ludwig Wilhelm Wittich in 1819. (Information from Edwin Corrie: 'Two Early Letterfolds' in British Origami 320 of February 2020)
The design also appears in another book by Heinrich Rockstroh, 'Belustigungen für die Jugend beiderlei Geschlechts', which was published by Willhem Schuppel in Berlin in 1836. (Information from Edwin Corrie: 'Two Early Letterfolds' in British Origami 320 of February 2020)