Trial of the Pyx Trial of the Pyx The Trial of the Pyx () is the procedure in the United Kingdom for ensuring that newly minted coins conform to the required standards. These trials have been held from the twelfth century to the present day, normally once per calendar year. The form of the ceremony has been essentially the same since 1282 AD. These events are trials in the full judicial sense, presided over by a judge with an expert jury of metallurgical assayers. Given modern production methods, it is unlikely that coins would not conform, but this has been a problem in the
Coins of the Philippine peso denominations. This has been an additional denomination to the current coin circulation and a replacement for the 10-piso NDS banknote. The series used again the Optima typeface. The 1997 and 1998 5 peso coins had no mint marks, but coins issued from 1999 onwards had mint marks. The 1997 and 1998 coins were minted by the Royal Canadian Mint. However, not all 1997 and 1998 coins were minted by the Royal Canadian Mint, quite a few were minted by the Manila Mint. On March 26, 2018, the Bangko Sentral ng Pilipinas introduced the "New Generation Currency Coin Series" which was