2. In order to better protect the interests of RMB holders, effectively use the development of science and technology to continuously improve the anti-counterfeiting technology and printing quality of banknotes, and maintain the leading position of RMB anti-counterfeiting technology, the People's Bank of China decided to issue the fifth set of RMB 100 yuan banknotes, version 20 15, so as to improve the machine-readable performance and adopt advanced public anti-counterfeiting technology to make it easier for the public to identify the authenticity.
Classification of crown number of RMB collection knowledge: Simply put, crown number refers to Roman numerals or pinyin letters before Arabic numerals on paper money. In the first, second and third editions of RMB banknotes before the fourth edition, the Roman crown number is the Roman crown number, in which the Roman crown number has two Roman numerals and three Roman numerals, and there are also colors in the crown number, such as the third edition 1 minute, the Roman crown number is red and the Roman crown number is blue.
Reference: China People's Bank? Understanding of the fifth set of RMB 100 banknotes in the 20 15 edition (in Chinese)