Trial of the Pyx been properly minted. Criteria are given for diameter, chemical composition and weight for each class of coinage. Statutory basis for the Trial of the Pyx is given by the Coinage Act 1971, the latest in a long series of similarly named Acts of Parliament. Specific procedures are established by Order in Council, the most recent being the Trial of the Pyx Order 1998, which was amended in 2005, 2012 and 2016. It is "not" required for a new Order to be issued for each Trial: this is mandated (to occur) only with regulatory revision. Trial of the Pyx The Trial
Coins of the rupiah have the Arabic removed, with "INDONESIA" replacing its Jawi equivalent for the second minting of the coin, dated 1955 (the 50 sen was also minted that year). Inflation meant that the smallest denomination to be minted after 1954 was the 10 sen, which likewise had Arabic removed from its reverse for its third minting, 1957; 25 and 50 sen coins were also minted in 1957. After 1957, the cupro-nickel 50 sen was debased to aluminium, the same metal as the lower denomination coins (which were never minted again). As a result of this, the 50 sen, previously the heaviest, but