ELFA-Blog archive of correspondance between Swamynathan and Elsje van der Ploeg
origami creations, envelope and letterfolds
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Priceless informtion.Like to know more details of this letterfold if possible.
It looks very interesting, but you can see the envelope was opened and closed again in a different way, so folds can be valley or mountain.I think it is up to you to experiment.I send this just to look at