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 New Zealand dollar of one pound to two dollars (10 shillings to a dollar). On the same day, new decimal coins were introduced to replace the existing pound coins. The first coins of the New Zealand dollar were 1c, 2c, 5c, 10c, 20c, and 50c. The 1c, 2c, and 50c coins were new sizes, with the 1c and 2c minted in bronze, and 50c in cupronickel. The new 5c, 10c, and 20c were the same size, weight, and value as the former sixpence, shilling, and florin coins. Indeed, until 1970, the 10 cents coin bore the additional legend "One Shilling". The obverse designs