Step 1:The backside of this paper is completely white.
Fold the paper in half over this line.
Step 2:
Fold the model in half over this line.
Step 3:
Make this valley-fold over the upper paper layer.
Step 4:
Make a mountain-fold over the line at the left and
a valley-fold over the line at the right.
The piece between the 2 lines is half the width of
the square red piece at the left.
Turn the model
Step 5:
Make a valley-fold over this line.
The corner at the arrow is pulled upwards
when you make this fold.
Step 6:
Press the place indicated by the arrow flat from above
Step 7:
Repeat step 5 and 6 over this line.
Step 8:
Now the backside of the model looks like this.
Turn the model.
Step 9:
Push the corner indicated by the arrow to the inside of the
model by making an inside reverse fold over these lines
(make a valley-fold at the same place as the line on the left,
at the layer on the backside)
Step 10:
Here a part of step 9 is already done.
Make the 3 folding lines sharper by pressing the model
flat between your fingers (These are the same lines
as in step 9).
Step 11:
Repeat step 9 and 10 over these lines.
Step 12:
Make a mountain-fold over these 2 short lines.
Step 13:
Press the edge indicated by the arrow inwards by making
an inside reverse fold over these 3 lines (=valley-fold over the
line in the middle and a mountain-fold over the 2 outer lines)
The bookmark is done!
