Ni Zan, Calligraphy Long Scroll, in silk handscroll format, collecting multiple pieces of calligraphy and landscape sketches, the brushwork inheriting Ni Zan??s simple elegant calligraphic style, with complete frontispiece, colophons, calligraphy and painting content, affixed with successive collector seals, length approx. 1980cm, width 49cm, with well-documented provenance and strong literati atmosphere, as Ni Zan is a representative figure of Yuan Dynasty literati painting and calligraphy, this long scroll integrating calligraphy and landscape painting is an important object for studying Yuan Dynasty literati art, with prominent painting and calligraphy collection value.