An early type of folding screen *byōbu 屏風, in which panels are individually made with surrounding borders and hinged together with cords. To prevent the cords from rubbing against the panel surface when it is folded, coin-shaped stoppers zenigata 銭形, are attached to the borders of each panel. The oldest examples, preserved at the *Shōsōin 正倉院, date from the Nara period. Each panel was an individual painting type. The composition (often containing several discrete scenes) was usually on silk, mounted with silk brocade borders onto a wood frame and thick paper batting. This screen making technique (and resulting format) is known as oshi-ebari 押画張 also written 押絵貼; literally to push on, oshi 押, in order to mount the printing on to the screen panel. The coin-shaped guards are made either of wood or leather and the cords used as hinges, either leather kawachōtsugai 革蝶番, or braided silk himochōtsugai 紐蝶番.