Engraved Yingfeng in Chinese, dated 72' Taipei and numbered 29/30 in Chinese

ILLUSTRATED:

Exhibition of Yuyu Yang's Art from 1961-1977, National History Museum, Taipei, 2000, color illustrated, p. 94

Landscape Contentment - Yang Ying-Feng, Hsiung Shih Publishers, Taipei, 2004, color illustrated, p. 119

Yuyu Yang Corpus, Artist Publishing Co., Taipei, 2005, color illustrated, p. 230

Yuyu Yang Vanguard on Native Soil, Kaohsiung Museum of Fine Arts, Kaohsiung; Yuyu Yang Artistic and Educational, Taipei, 2006, color illustrated, p. 147

Eternity of Heaven and Earth: Sculptor YuYu Yang, Chengyin Culture, Taipei, 2009, p. 41

This sculpture is to be sold with a cerificate of authenticity issued by Yuyu Yang Foundation, Taipei.