Zheng Shushan, a master of "Wushan Iron Calligraphy", creates iron calligraphy works in his studio on June 16, 2015. [Photo/Xinhua]

With a history of over 100 years, "Wushan Iron Calligraphy" is a specialty of Wushan town, East China's Anhui province. The Chinese characters are cold forged by hands with special skills that can produce the effect of hand writing.