Money was historically an emergent market phenomenon that possessed intrinsic value as a commodity; nearly all contemporary money systems are based on unbacked fiat money without use value. Its value is consequently derived by social convention, having been declared by a government or regulatory entity to be legal tender; that is, it must be accepted as a form of payment within the boundaries of the country, for "all debts, public and private", in the case of the United States dollar.
An intelligent banknote neutralisation system (IBNS) is a security system, that is used by banks, ATMs, retail establishments, vending machines and the cash-in-transit industry, to render stolen funds un-useable and easily identifable. Dye packs are inserted between bills in random bundles. If a bundle containing a dye pack is removed from a specified area (i.e. taken out of bank doors), it explodes, releasing an indelible ink dye and possible array of additional chemicals. The conspicuous bright color (usually red) stains on the bills, allow quick easy visual recognition of stolen money. Tracers and markers can also be added to the ink or bonding agent providing forensic evidence linking the criminal to the crime. Bonding agents (i.e. glues) have been used more recently.
Stained bills cannot be brought back into circulation easily, because they are visually and/or forensically linked quickly to the crime scene. Restricted procedures are globally in place in case of an attempt to exchange them at any financial institutions. (Full article...)
The word złoty is a masculine form of the Polish adjective 'golden', which closely relates with its name to the guilder whereas the grosz subunit was based on the groschen, cognate to the English word groat. It was officially introduced to replace its predecessor, the Polish marka, on 28 February 1919 and began circulation in 1924. The only bodies permitted to manufacture or mint złoty coins and banknotes are Polish Security Printing Works (PWPW), founded in Warsaw on 25 January 1919, and Mennica Polska, founded in Warsaw on 10 February 1766. (Full article...)
Image 8Sino Tibetan silver tangka, dated 58th year of Qian Long era, reverse. Weight 5.57 g. Diameter: 30 mm (from Tibetan tangka)
Image 9Athens coin (c. 500/490-485 BC) discovered in Pushkalavati. This coin is the earliest known example of its type to be found so far east. (from Punch-marked coins)
Image 17A 640 BC one-third staterelectrum coin from Lydia. According to Herodotus, the Lydians were the first people to introduce the use of gold and silver coins. It is thought by modern scholars that these first stamped coins were minted around 650 to 600 BC. (from Money)