1968年版毛景安编《中国纸币之沿革》,香港印刷,详录1923-49年中央银行钞票图片及文字描述,保存完好。History of Chinese Paper Currency, Volume 1, by King O. Mao, 1968, published in Hong Kong, a comprehensive catalogue with detailed descriptions and images for Chinese banknotes issued by The Central Bank of China between 1923-1949,well preserved