How to make an origami menko II out of single square paper

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25th picture of origami menko II out of single square paper

25.

Complete applying the "valley-fold" of the step #23.

Prepare to fold the layer back.

26th picture of origami menko II out of single square paper

26.

Fold back the layer.

Prepare to rotate the origami menko model by 90 degrees.