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 Manx pound Coins of the Manx pound The official coinage of the Isle of Man are denominated in Manx pounds. From 1971 to 2016, coins of the Isle of Man were minted by Pobjoy Mint Limited.Since 2017, coins of the Isle of Man are minted by the Tower Mint. Due to matching appearance and value of pound sterling coins, these coins often appear in circulation within the United Kingdom. However, they are not legal tender there. Conversely, the Isle of Man "does" recognise pound sterling coins. As well as producing non-circulating commemorative designs, the Isle of Man regularly changes the designs on