Halfpenny (British decimal coin) portrait the Queen wears the 'Girls of Great Britain and Ireland' Tiara. Annual number of coins released into general circulation (excludes proof sets) A decimal quarter-penny coin (to be struck in aluminium) was also proposed (which would have allowed the pre-decimal threepence to continue to circulate with a value of new pence), but was never produced. Halfpenny (British decimal coin) The British decimal halfpenny (p) coin was introduced in February 1971, at the time of decimalisation, and was worth one two-hundredth of a pound sterling. It was ignored in banking transactions, which were carried out in units of 1p. The
Decimal Day for some time before and after. Prior to Decimal Day the double pricing was displayed as e.g. "1s (5p)"; from Decimal Day the order was switched to "5p (1s)". For example, this order was used on most football programmes during the 1970–71 season. High denomination (10p, 20p, and 50p) stamps were issued on 17 June 1970. Post offices were issued with very simple training stamps in the same colours as the upcoming decimal stamps. Exceptions to the 15 February introduction were British Rail and London Transport, which went decimal one day early, the former urging customers, if they chose to