Royal Mint other manufacturers. The Trial of the Pyx is the procedure in the United Kingdom for ensuring that newly-minted coins conform to required standards. The trials have been held since the twelfth century, normally once per calendar year, and continue to the present day. The form of the ceremony has been essentially the same since 1282. They are trials in the full judicial sense, presided over by a judge with an expert jury of assayers. Since 1871, the trials have taken place at the Hall of the Worshipful Company of Goldsmiths, having previously taken place at the Palace of Westminster. Given
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.