20 euro note about two years before it is replaced due to wear. It is the third-smallest note, measuring 133 x 72 mm with a blue colour scheme. The twenty euro banknotes depict bridges and arches/doorways in Gothic architecture (between the 13th and 14th century CE). The twenty euro note contains several complex security features such as watermarks, invisible ink, holograms and microprinting that document its authenticity. The full design of the Europa series 20 euro banknote was revealed on 24 February 2015 and launched on 25 November 2015. The euro was founded on 1 January 1999, when it became the currency of
Banknote Museum white background. The museum collection also contains the pre-Kapodistrian treasury bonds issued by the provisional Greek government in "pisters" or "grossia". The National Bank of Greece was established in 1841 and the ancient drachma became once more the official currency of Greece. The museum exhibits the first banknotes printed by the British printing houses Perkins Bacon or Bradbury Wilkins. The collection also includes the notes printed by the American Banknote Company which succeeded the British at the turn of the century. The American company printed Greek banknotes until about 1928. Subsequent to that the Bank of Greece undertook the printing