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Hallmarks include information not only about the precious metal and fineness, but the country from which the item was tested and marked. Some hallmarks can reveal even more information, e.g. the assay office, size of the object marked, year the item was hallmarked - referred to as a date mark (also known as date letter). [2]
Initially, hallmarks consisted of the goldsmiths' proper mark which was the maker's mark originally used to identify the silversmith or goldsmith responsible for making the article. The fineness mark, the crowned harp, was applied to 22 carat gold and sterling silver, which was silver of a standard of 925 parts of fine silver in each 1,000.
The official mark - the Head of Aphrodite until December 2001 and a ship as from January 2002 denotes that the article is made of gold, and the fish that the article is made of silver. The manufacturer's mark must be struck on the articles by the manufacturer before it is submitted to the Assay Office for hallmarking.
Historically, the marks were used for few purposes: [5] declaration of the ownership (an ownership mark, for example, livestock branding [6]); identification of the manufacturer and place of origin (manufacturer's mark, maker's mark, later a factory mark); differentiation in order to distinguish between similar items (for example, a date mark).
A Gold code, also known as Gold sequence, is a type of binary sequence, used in telecommunications [1] and satellite navigation . [2] Gold codes are named after Robert Gold. [ 3 ] [ 4 ] Gold codes have bounded small cross-correlations within a set, which is useful when multiple devices are broadcasting in the same frequency range.
D (only on commemorative €2 issues since 2010 (except commemorative €2 commonly issued coins from 2012 and 2015), not to be confused with Munich mint mark "D" on standard-issue designs of all denominations) Symbol: Depiction of the Bundesadler (Federal Eagle) (only on standard-issue €1 and €2 designs) Greece [5] Text
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They are made of iron and date between. There is also an extremely rare bronze example of this coin. 943–957: Yuan Zong: Yongtong Quanhuo: 永通泉貨: yǒng tōng quán huò: 959–964: Yuan Zong: Tangguo Tongbao: 唐國通寶: tang guó tōng bǎo: The inscriptions of these cash coins could be written in seal, li, and regular script. [48 ...