How to make a diamond origami envelope (page 18)

 

33. Apply the vertical "valley-fold" of the step #32.   Prepare to put the flap (layer 1) under the layer 2.

34. Start putting the flap (layer 1) under the layer 2.

 

 

 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21