when did the silver sixpence go out of circulation
Sixpence (British coin) Beginning with Lord Wrottesley's proposals in the 1820s, there were various attempts to decimalise the pound sterling over the next century and a half.[9][10] These attempts came to nothing significant until the 1960s when the need for a currency more suited to simple monetary calculations became pressing[citation needed]. The decision to decimalise was announced in 1966, with the pound to be divided into 100, rather than 240, pence.[11] Decimal Day was set for 15 February 1971, and a whole range of new coins were introduced. Sixpences continued to be legal tender with a value of ​2 1⁄2 new pence until 30 June 1980.[12]
Shilling (British coin) The shilling (1/-) was a coin worth one twentieth of a pound sterling, or twelve pence. It was first minted in the reign of Henry VII as the testoon, and became known as the shilling from the Old English scilling,[1] sometime in the mid-sixteenth century, circulating until 1990. The word bob was sometimes used for a monetary value of several shillings, e.g. "ten bob note". Following decimalisation on 15th February 1971 the coin had a value of five new pence. It was made from silver from its introduction in or around 1503 until 1947, and thereafter in cupronickel.