A ko-buku-sa, 古帛紗, old-cloth-gauze, also written with Kanji, 古袱紗, is a small square of fine fabric that is used to display or hold a prized Tea utensil. The fabric is doubled, so that it is hemmed on three sides. It is kept in the front folding of the kimono, futokoro or kai, folded in half like a Japanese book, with the fold on the right, together with a folded fuku-sa, 帛紗, cloth-gauze, and folded pack of kai-shi, 懐紙, heart-paper. Because of its kept location, it is also called a kai-chū ko-buku-sa, 懐中古帛紗, heart-middle old-cloth-gauze. The kobukusa is kept in the futokoro, 懐, heart, the front folding of...