 On 2 February 2009, banknotes of the fourth dollar (ZWL) were introduced to replace those of the third dollar at the ratio of one trillion (1012) to 1.It was originally envisaged that banknotes of the third dollar would remain legal tender until 30 June 2009 but all banknotes were withdrawn from circulation following the suspension of the Zimbabwe dollar on 12 April 2009.The Chiremba Balancing Rocks near Harare is the main artwork used for obverse sides of the first two banknote designs of the first Zimbabwean dollar.