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 Cypriot pound 3. Coins were introduced for ½, 1, 2, 5, 10 and 20 cents, with the ½ cent the same size and composition as the earlier 5 mil coins. The other coins were struck in nickel-brass. The ½ cent was only struck in 1983. In 1991, cupronickel, seven-sided (reuleaux heptagon) 50 cent coins were introduced. The 20 cent coin currently minted has a different reverse side than the one shown above. Specifically, it shows the head of Cypriot philosopher Zeno of Citium. When brand new, the first five coins (1, 2, 5, 10, and 20 cent) have exactly the same bright