This is a gorgeous cobalt blue Tempera Crystal Art Glass Bowl designed by Anna Ehrner . It has swirling veils of color to bring life and the feel of a fine watercolor,, which makes for a fine centerpiece. Acid etched Kosta Boda mark is on the bottom of the bowl. It measures 7 3/4" X 3 3/4" and it weighs 3.11 pounds. No chips or cracks, it's in excellent condition.