Double Triangle Box

Here is the third box which resulted from the exploration which led to the Diamond Boxes. This one has a triangle on both the insides and the outsides of the end walls. Once again the box can be made from any rectangular sheet of paper folded either lengthwise or widthwise. {Is that a word?}


Here is the CP.

I have made a set of step folds but they are a little rough and I have not photographed them yet. Formal diagrams are some time away. (As usual).