SEIGAHA GLASS BONG

Also pronounced seikaiha. A wave design made of the arches of concentric circles superimposed upon one another so that only the upper portion of each set of circles is visible. It was used in China to depict the sea on ancient maps. In Japan it appears earliest on the clothing of a haniwa 埴輪 figure of a girl excavated in Gunma prefecture. Beginning in the Heian period it was used on mo 裳, a form of shirt worn with the twelve-layers juunihitoe 十二単 of kimono 着物.