Origami Enveloppe Rectangle. Start by folding your paper in half with the pattern on the outside. Origami envelope rectangle 3dorigami 3dorigami envelope origami origamienvelope recta origami envelope useful origami origami instructions.
This origami letterfold will only take you about 2 minutes or less to make. Tuck corner a into the pocket created by corner c. Now you’re ready for the important part: