The National Bank of China issued theirs in the 1890s.
There was a continuous issue till the Second World War in different colours and dimensions, they were reissued from 1946.
The Mercantile bank ceased issue of this denomination after 1959.
There was a standardisation of size in 1979 when the Chartered Bank reduced the size to that similar to HSBC.
The colour was made uniform in 2003 when brown for all banknotes was adopted.