Watch "【新発見】沖ノ島で出土した国宝「金銅製矛鞘」X線で調査→矛に施されていたのは象嵌（ぞうがん）「匹敵する類例がない」" - a great video from the 沖ノ島 category. Enjoy high-quality streaming with our advanced video player.
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