Industry WIKI

The EURion constellation (also known as Omron rings or doughnuts) is a pattern of symbols incorporated into a number of secure documents such as banknotes, cheques, and ownership title certificate designs worldwide since about 1996. It is added to help imaging software to detect the presence of such a document in a digital image, or scanners to detect such a document being scanned. The s

The dollar (Mongolian: доллар) was the currency of Mongolia between 1921 and 1925 during the transition from the rule of the Bogd Khan government to the People's Government. The treasury notes were issued under Baron Ungern in 1921. The denominations were 10, 20, 50, and 100 dollars. The dollar, together with other circulating currencies, was replaced by the togrog in 1925.

The rigsdaler specie was a unit of silver currency used in Norway from 1544, renamed as the speciedaler in 1816 and used until 1873. Norway used a common reichsthaler currency system shared with Denmark, Hamburg and Schleswig-Holstein until 1873 when the gold standard was implemented in Scandinavia and the German Empire.