Royal Mint other manufacturers. The Trial of the Pyx is the procedure in the United Kingdom for ensuring that newly-minted coins conform to required standards. The trials have been held since the twelfth century, normally once per calendar year, and continue to the present day. The form of the ceremony has been essentially the same since 1282. They are trials in the full judicial sense, presided over by a judge with an expert jury of assayers. Since 1871, the trials have taken place at the Hall of the Worshipful Company of Goldsmiths, having previously taken place at the Palace of Westminster. Given
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