Origami Time-Lapse: Folding 50 Alexander Swallowtail Butterflies (Michael LaFosse)

Tutorial on how to fold the Alexander Swallowtail Butterfly:  ...  Paper used in this video: 50 sheets of washi, each with a side length of  ...  cm (2 1/4 in) Finished models: wingspan of 4 cm (1 9/16 in), height of 3 cm (1 3/1