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 Canadian dollar $10 denominations, though sovereigns, to British standards, were issued in small quantities for some years. The minting of gold coins for circulation ceased due to the onset of the first world war, when the government of Canada recovered the majority of circulating gold coins to finance the war. Reissue plans were dropped in 1928. According to the Mint, a large quantity of the 1912–1914 gold coins were stored by the Bank of Canada for over 75 years. In 2012, the Mint offered 30,000 coins from the collection for sale to the public through its retail channels and stated that it