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 coins minted in 1911 with a mintage of 209,972. The Canadian Coin News publication printed an article showing a well-worn 1911 50¢ example that did have the "DEI GRA" abbreviation. This coin has not yet been certified as genuine, having been rejected by ICCS, the popular Canadian grading company. The 1911 pattern dollar coin was produced with the 'DEI GRA' abbreviation on the two known silver examples and the one known example in lead. In 1920, the fineness of the silver coins was changed from .925 fine silver to .800 fine silver, and the size of the cent was reduced.