Commemorative banknotes are also released, usually in limited quantities. The first commemorative banknote was released on 24 July 1990 to celebrate the 25th anniversary of Singapore's independence. Of the 5.1 million $50 polymer banknotes issued, 300,000 came with an overprint of the anniversary date "9 August 1990". This $50 note was the first commemorative note issued by the Board of Commissioners of Currency, Singapore (BCCS) and was also the first polymer banknote in the history of Singapore's currency. In addition, the $50 note was the first note designed in Singapore by a Singapore artist.