The twenty-dollar note is one of the most common banknote denominations in Hong Kong. It was first issued by the

Oriental Bank Corporation The Oriental Bank Corporation (), or "OBC", was a British imperial bank founded in India in 1842 which grew to be prominent throughout the Far East. As an Exchange bank, the OBC was primarily concerned with the finance of trade and exchanges of ...

from 1866 to 1884, which are listed as extremely rare. Apart from this, the banknote was reintroduced in 1985 by the Standard Chartered Bank (Hong Kong) in green and yellow, followed by

The Hongkong and Shanghai Banking Corporation The Hongkong and Shanghai Banking Corporation Limited (), commonly abbreviated as HSBC and formerly known as HongkongBank (; styled ''Wayfoong'' by the bank), is the Hong Kong–based Asia-Pacific subsidiary of the HSBC banking group, for whi ...

in 1986 in black colours. The

Bank of China The Bank of China (BOC; ; Portuguese language, Portuguese: ''Banco da China'') is a state-owned Chinese Multinational corporation, multinational banking and financial services corporation headquartered in Beijing, Beijing, China. It is one of ...

issued their version in 1994 as a blue coloured banknote. These were standardised in 2004 when all three types of banknotes were changed to a blue colour.

References

*Ma Tak Wo 2004, Illustrated Catalogue of Hong Kong Currency, Ma Tak Wo Numismatic Co., LTD Kowloon Hong Kong. *《香港金融管理局二零一四年年报》 (PDF): p52. 2015-04-24 015-05-10 （原始內容 (pdf)存檔於2015-05-10）（中文（香港））. Banknotes of Hong Kong Twenty-base-unit banknotes Currencies of Hong Kong {{banknote-stub