Bank of England note issues of the note; these notes are now very rare and sought by collectors. The Stephenson £5 note was withdrawn as legal tender from 21 November 2003, at which time it formed around 54 million of the 211 million £5 notes in circulation. The first Bank of England £10 note was issued in 1759, when the Seven Years' War caused severe gold shortages. Following the withdrawal of the denomination after the Second World War, it was not reintroduced until 21 February 1964 when a new brown-coloured note was issued in the Series C design. The Series C note was withdrawn on
Federal Reserve Note denominated notes since the 1990 series a vertical laminate strip imprinted with denomination information, which under ultraviolet light fluoresces a different color for each denomination ($5 note: blue; $10 note: orange; $20 note: green; $50 note: yellow; $100 note: red). According to the central banks, the number of counterfeited bank notes seized annually is about 10 in one million of real bank notes for the Swiss franc, of 50 in one million for the Euro, of 100 in one million for United States dollar and of 300 in one million for pound sterling. Critics, such as the American Council of