Exquisite Art Deco 24% Lead Crystal Triangle Ribbed Box

This is a magnificent quality heavy lead crystal box in an art deco design. It is shaped like a triangle or pyramid, and has ribbing in two directions that really catches the light in a glorious way. It is 1.5 inches high and 6.25 inches each direction. I do not know the age or the maker, it is an auction item. The box is in excellent condition, no chips, no cracks, and no scratches that I can see.