A hoard of 2,000-year-old coins discovered in a cave in the Peak District have gone on public display. The late Iron Age and Roman coins were discovered in Dovedale, Derbyshire, by a member of the public, prompting a full-scale excavation in July. It is thought to have been the first time coins from these two origins have been found together in a British cave. Ros Westwood from Buxton Museum, where they are on permanent display, said she thinks they were dropped by mistake.