The current one leu banknote is the smallest circulating denomination af the Romanian leu. It is the same size es the 5 Euro banknote.
The main color of the current banknote is green. It pictures, on the obverse Prime-minister and historian Nicolae Iorga, and on the reverse the Curtea de Argeş Cathedral, which suffered a massive restoration under his Government, and a crossed eagle, the Wallachian traditional heraldic element.
History
In the past, the denomination was also in the coin form, as follows:
banknote issue: 1915 (re-issues: 1920, 1937, 1938), 1917 (issued by the Romanian General Bank and circulated in the German occupation area between 1917-1918)
coin issue: 1924
banknote re-issue: 1938 (re-issue of the 1915 design)
coin issue: 1938 (re-issues: 1939, 1940, 1941)
banknote issue: 1941 (issued by INFINEX and circulated in Romanian administrated Transnistria between 1941-1944)
Second leu (1947-1952)
coin issues: 1947, 1949 (re-issues: 1950, 1951)
Third leu - ROL(1952-2005)
banknote issue: 1952
coin issue: 1963
banknote issue: 1966
coin issues: 1966 (actually minted in 1967, re-issue of the 1963 design), 1992, 1993 (re-issues: 1994, 1995, 1996)
Fourth leu - RON (since 2005)
banknote issue: 2005 (redesigned issue of the former 10.000 lei banknote, whereas 10.000 third lei = 1 fourth leu)