世界名钟之景云铜钟

景云铜钟是唐代为景龙观所铸之青铜钟，原名“景龙观钟”，开元年间改景龙观为迎祥观，故又称“迎祥观钟”，是国家一级文物，中国首批禁止出国(境)展览文物，被称为"天下第一名钟"，世界名钟之一，现藏于陕西西安碑林博物馆钟亭。

Jing Yun Bronze Bell is a bronze bell cast for Jinglongguan in Tang Dynasty, formerly known as Jinglongguan Bell. It was changed to Yingxiang Bell in Kaiyuan Period, so it is also called Yingxiang Bell. It is a national first-class cultural relic, and the first batch of cultural relics prohibited from going abroad for exhibition in China, which is called "the first clock in the world" and one of the world famous clocks. It is now stored in the Bell Pavilion of Beilin Museum in Xi 'an, Shaanxi Province.

钟高247厘米，腹围486厘米，口径165厘米，重6吨。钟用铜锡合金铸成，铸造时分为5段，共26块铸模，钟体可见铸模痕迹。钟形上锐下侈，口为六角弧形。钟身有可调节音律的"蒲牢"形钟乳32枚，钟声纯美优雅，清脆洪亮。钟身周围铸有纹饰，自上而下分为3层，每层分为6格，共18格。

The clock has a height of 247 cm, a circumference of 486 cm, a diameter of 165 cm and a weight of 6 tons. The clock is made of copper-tin alloy, which is divided into five sections with 26 molds, and mold marks can be seen on the clock body. The bell is sharp on the top and tiny on the bottom, and its mouth is hexagonal arc. There are 32 Pu-prison-shaped stalactites with adjustable rhythm, and the bells are pure, elegant, crisp and loud. Ornaments are cast around the clock body, which is divided into 3 layers from top to bottom, and each layer is divided into 6 grids with 18 grids.

钟身正面有骈体铭文一段，共292字，分为18行，每行17字，空格14字，字体为稍参篆隶的楷书。此铭文由唐睿宗李旦亲自撰文并书写，内容是宣扬道教教义，阐述景龙观的来历、钟的制作经过以及对钟的赞扬，是李旦传世极少的珍贵书迹，故此铭文为研究书法史者所珍视。

There is an inscription on the front of the clock body, which has 292 words and is divided into 18 lines, with 17 words in each line and 14 words in spaces. The font is regular script with a little reference to seal script. This inscription, written by Li Dan of Tang Ruizong, preaches Taoist teachings, expounds the origin of Jinglongguan, the making process of the clock and praises the clock. It is a rare book trace handed down by Li Dan, so the inscription is cherished by those who study the history of calligraphy.

景云钟铸工技巧娴熟，雕工精致，纹饰精美，线条流畅，钟声清晰洪亮，音质优美，显示了唐代冶铸技术的高超水平。正是以其自身独特的形制，精美的雕刻，古秀的书体，幽邃的声音，高超的冶炼技术，跻身于世界名钟之列。

Jing Yun bell casters are skillful, exquisite in carving, exquisite in ornamentation, smooth in lines, clear and loud in bells and beautiful in sound quality, which shows the superb level of smelting and casting technology in Tang Dynasty. It is precisely because of its unique shape, exquisite carving, ancient book style, quiet voice and superb smelting technology that it ranks among the world famous clocks.