?First of all, I did not find one from the 18th year of the Republic of China, only the 38th year of the Republic of China. Please check it. The specific value refers to the auction records in recent years. The approximate price is 20,000. Yuan or so

? The Chinese version of the Central Bank’s gold-yuan notes of five hundred thousand yuan in the 38th year of the Republic of China (1949). Description: Banknotes of the Republic of China, National Bank’s gold-yuan notes. The front is red, with the name of the "Central Bank" on the top, a statue of Chiang Kai-shek on the right, and the face value of "Golden Yuan Notes Five Hundred Thousand Yuan" on the left. Under the face value are the seals of the President of the Central Bank and the Vice President of the Central Bank. There are the words "五百万" on each of the four corners, and the name of the printing unit "Zhonghua Book Company Co., Ltd." outside the lower border. The back is red, with the name "Central Bank" in English on the top, a picture of the Sun Yat-sen Memorial Hall in Guangzhou in the middle, and the face value "5000000" on the left and the English signatures of Liu Siye (right) and Gao Yusheng (left). The lower border has the English denomination "Golden Circle 5,000,000 Yuan" and the printing year "1949", the four corners have "5000000", and the English "Zhonghua Book Company Co., Ltd." is written outside the lower border.