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ENVELOPE SECRET |
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Use
a square of paper. 1 Valley fold the opposite
corners together in turn to mark the diagonal fold-lines, and open them up. 2 Turn the
paper over. Valley fold the opposite sides and edges together in turn to mark the vertical
and horizontal fold-lines, and open them up. 3 Press the
middle of the fold-lines, until the sides pop up. Bring the sides together and down
towards you, press the top down neatly, thereby completing the preliminary fold. 4 Valley fold
the lower sloping edge over, so it lies along the vertical middle line. Valley fold the
top point down on a line between the fold-lines. Press them flat and unfold them. Repeat
it behind. 5 Open out the model. Turn the paper over.
6 Valley fold and unfold the edges as shown. |
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7 Form the creases. Mountain fold the places specified by the
arrows. 8
Hold the model in the marked places. Bring the edges in the direction shown by the arrows. 9
Mountain fold the back layer down. 10
Valley fold the edge; verify the result with the following figure. 11
Valley fold the flap from bottom to top. 12
The result. Turn the model around counter-clockwise. 13
Valley fold the top layer down. 14
Repeat steps 10 -13 for three other flaps. 15 The envelope "Secret" is ready! |