Coins of the pound sterling chronologically. All genuine UK coins are produced by the Royal Mint. The same coinage is used across the United Kingdom: unlike banknotes, local issues of coins are not produced for different parts of the UK. The pound coin until 2016 was produced in regional designs, but these circulate equally in all parts of the UK (see UK designs, below). Every year, newly minted coins are checked for size, weight, and composition at a Trial of the Pyx. Essentially the same procedure has been used since the 13th century. Assaying is now done by the Worshipful Company of Goldsmiths on behalf
Coins of the rupiah copper-nickel. 1 sen coins were effectively worthless, and only a token number of 100,000 were minted, all dated 1952. 5 sen coins were more useful and were also minted dated 1954, as was the 10 sen. From 1954, Indonesia began to eliminate use of Malay Arabic script (Jawi), which had been a feature of the coins of the Netherlands Indies as well as of past Islamic sultanates in the archipelago. The 50 sen coin was the first to be changed, with the Arabic text simply removed from the coin for its 1954-dated minting. The 25 sen was the next to