Halfpenny (British pre-decimal coin)
…abbreviated ob. (from the Latin 'obulus'), is a discontinued denomination of sterling coinage worth 1/480 of one pound, 1/24 of one shilling, or 1/2 of one penny. Originally the halfpenny was minted in copper, but after 1860 it was minted in bronze. In the run-up to decimalisation, it ceased to be legal tender…