This seal belongs to Singaporean calligrapher and art collector Tan Tsze Chor, also known as Xiang Xue Zhuang Zhu (Owner of 'Xiang Xue Zhuang') due to his immense collection of Chinese artworks. This stone is commonly referred to as 'chicken blood' stone based on the fact that cinnabar, as it occurs in this material, closely resembles chicken blood. It is mined in Changhua, Zhejiang province in China. It is especially rare today. Qi Baishi was well known for his raw and rough strokes and strength in composition in seal carving. His unique and daring approach to seal carving was based on his strong belief in making ‘individual creations’.