pounds (1.4 kg), which could be dispersed in clothing and luggage without attracting attention or alerting security devices. In illegal operations, transporting currency is logistically more difficult than transporting cocaine because of its size and weight, and the ease of transporting its banknotes makes the euro attractive to Latin American drug cartels. The Swiss 1,000-franc note, worth slightly more than $1,000, is probably the only other banknote in circulation outside its home country. However, it does not have a significant advantage over the €500 note to the non-Swiss; there are 20 times as many €500 notes in circulation, and they are more widely recognized. As a reserve currency, it makes up about 0.1% of the currency composition of official foreign-exchange reserves. Governments vary in their issuance of large banknotes; in August 2009, the number of Fr. 1,000 notes in circulation was over three times the population of Switzerland. For comparison, the number of circulating £50 banknotes is slightly less than three times the population of the United Kingdom; the Fr. 1,000 franc note is worth about £600. The British government has been wary of large banknotes since the counterfeiting Operation Bernhard during World War II, which caused the Bank of England to withdraw all notes larger than £5 from circulation. The bank did not reintroduce other denominations until the early 1960s (£10), 1970 (£20) and March 20, 1981 (£50). See also Breakage Currency substitution Fractional reserve banking Full reserve banking Gold certificate Hyperinflation in Zimbabwe Inflation Inflationism Inflation hedge Money Monetarism Quantitative easing Silver certificate References External links "A better way to account for fiat money at the Central Bank" by Thomas Colignatus, December 31, 2005 Creating New Money: A Monetary Reform for the Information Age (PDF), by Joseph Huber and James Robertson Extensive discussion Information about Seigniorage Sovereignty & Seignorage (PDF) "The temptation of dollar seigniorage", by Kosuke Takahashi of Asia Times Online, January 23, 2009. Dollar notes to be replaced by coins – The Royal Mint view By The Royal Mint, January 16, 2013 Numismatics Tax Management accounting