it was unearthed at Buriton in Hampshire, around 14 kilometers (9 miles) from the southern coast of the UK. It’s not totally clear whether the coin was dropped by a modern collector or medieval rambler. However, some historians have some well-founded suspicions that the coin was most likely dropped at some point during the Middle Ages.
Dr Caitlin Green, a historian at the University of Cambridge in the UK, has written a blog post describing this discovery and argues that the coin was likely not dropped by a modern-day collector.
For one, the coin was discovered in a field that was full of Medieval artifacts, including a coin of King John minted at London in 1205–7, a cut farthing coin dating between 1180 to 1247, fragments of medieval or early post-medieval vessels, and two 16th century coins. Furthermore, archeologists have previously discovered another Northern Song dynasty coin in England. The newly discovered coin was also found in the same area as the only confirmed medieval imported Chinese pottery from the 14th century.