Since 1867 there have been four successive currencies in Romania known as the leu (plural lei). This article details the banknotes denominated in the leu and its subdivision the ban since 1917, with images.
Issued in Iaşi, during World War I by the Ministry of Finance, as war money. The banknotes represent the ban (pl. bani).
The 5,000, 10,000, 100,000 (1946), 1,000,000, and 5,000,000 lei banknotes from the 1943-1947 series had the left edge wavy.
A 500 lei coin and the 2,000 lei note shown above were made in order to celebrate the 1999 total solar eclipse. Whereas the 500 lei coin is currently very rare, becoming a prized collector's item, the 2,000 lei note was quite popular, being taken out of circulation in 2004 (a long time after the 1,000 and 5,000 lei bills were replaced by coins).
The leu notes issued on 1 July 2005 are of equal size to euro banknotes, so that machines will need less refitting once Romania joins the euro zone. This decision was taken after a lot of debate, and with some opposition, the initial decision being to make them even smaller, similar to the 1966 series. The old leu notes were rather long and fairly uncomfortable to carry.
The design of the notes follows some common guidelines: the obverse shows a flower native to Romania and the portrait of a Romanian cultural personality; the reverse shows a building or a well-known monument. All banknotes are printed on plastic polymer, each in its own colour theme (light green for 1 leu, light purple for 5 lei, light pink and light orange for 10 lei, yellow for 50 lei, blue for 100 lei, dark orange for 200 lei, and light gray for 500 lei). On 14 November 2008 the National Bank of Romania announced the issue of a redesigned 10 lei banknote. The new design employs offset printing in favor of the intaglio printing used in the 2005 series. Also the transparent window will undergo a shape redesign.