Japanese bekko (tortoiseshell) artisans had been renowned as the world's premier craftsmen since 1700, when they established themselves in Nagasaki. Richly patterned and polished, it is crafted into brooches and necklaces, combs, hairpins, frames for eyeglasses and delicate works of art. See "鼈甲 Bekko". ウイキペデイヤ Wikipedia Japan. Retrieved 2014-10-26. See also Gary Strieker. "Tortoiseshell ban threatens Japanese tradition". CNN News. Retrieved 2014-10-26.