euro note euro note middle value euro introduction euro cash form note daily million europeans countries euro sole currency legally adopting fourth smallest note measuring orange colour scheme note depicts bridges arches renaissance era 15th 16th centuries note contains complex security features invisible ink document authenticity january euro circulation far widely circulated total design series revealed july launched april history euro founded january currency million people europe years existence invisible currency accounting euro cash introduced january replaced national coins countries dutch portuguese today note daily million europeans countries sole currency legally adopting joined cyprus malta slovakia estonia lithuania period period notes coins exchanged euro lasted months january february official date national ceased legal tender varied member state member state earliest date germany mark officially ceased legal tender december exchange period lasted months old ceased legal tender continue accepted national central banks periods ranging years forever changes notes printed november bear signature president succeeded november signature appears issues november march notes issued march bear signature president incumbent series euro notes new series similar current planned released announce series lose legal tender status june current issues reflect expansion european_union cyprus depicted current notes map extend far east malta missing meet current series minimum size depiction plans redesign notes seven years issue second series preparation new production anti techniques employed new notes design theme bridges arches use colours identical previous series new series design euro note fourth smallest note measuring millimetres millimetres orange colour scheme euro depicts bridges arches different historical european style note shows renaissance era 15th 16th centuries original designs intended real monuments political reasons bridge window merely hypothetical examples architectural era like euro notes note shows flag signature president initials different languages depiction territories overseas stars flag security features security features series euro note contains following security features colour changing ink located note appears change colour purple brown note number printed corner note sides appear combine perfectly form value held light note appears image change value window doorway background appears rainbow coloured concentric circles micro letters moving centre edges patch pattern symbols found number designs worldwide added help software detect presence digital image appear held light raised printing main image lettering value raised ink paper glow embedded paper appear coloured red blue green flag green orange stars president currently signature turns green large stars small circles glow european map bridge value appear yellow areas example inside euro greek characters micro text sharp blurred security thread embedded paper thread appear dark stripe held light word euro value embedded tiny letters thread form euro symbol small numbers showing value surface note paper pure cotton feels crisp firm serial number security features series note held normal light source portrait appear portrait window note held light window transparent reveals portrait visible sides note portrait note silver colored stripe right note reveals portrait symbol main image value number note number left corner note displays effect light moves number changes color green deep blue security thread note held light security thread appears dark line symbol value note seen tiny white lettering stripe areas feature series tiny letters read glass letters sharp blurred circulation approximately circulation euro note commonly total value notes circulation approximately monitors circulation stock euro coins tasked ensuring efficient smooth supply euro notes legal information legally central banks countries right issue different euro practice national central banks zone physically issue withdraw euro cash office involved cash operations tracking communities people european level hobby keeps track euro pass hands track know travel traveled aim record notes possible order know details spread like travel general follow like ticket seen particular generate statistics rankings example countries tickets registered million notes worth billion
50 euro note