Namikawa Yasuyuki shippō: Meiji shippō no yūwaku tōmeina kuro no kansei 並河靖之七宝 : 明治七宝の誘惑　透明な黒の感性 = Namikawa Yasuyuki and Japanese Cloisonné: The Allure of Meiji Cloisonné: The Aesthetic of Translucent Black