How to make a traditional origami butterfly

(page 9)

15th picture of traditional origami butterfly

15.

Prepare to apply the CP of low half of the paper.

16th picture of traditional origami butterfly

16.

Apply the CP of the step #15.

This shape is called "twin-boat base". You can make a twin boat by applying a mountain-fold on the middle.

Prepare to apply two valley-folds.

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