Amateur archaeologists with metal detectors found 990 items classified as treasure during 2012, according to figures from the British Museum.
All of the rare coins, rings and brooches contain gold or silver, and many date back more than 1,200 years.
The public reported more than 74,000 other historical items to the Portable Antiquities Scheme, which experts say has “revolutionised archaeology”.
More than 900,000 objects have been reported since it started in 1997.
The verification process takes several months, which is why the items submitted in 2012 are only being detailed now.
Neil MacGregor, Director of the British Museum said the scheme, which launched its annual report today, was “ensuring that finds found by ordinary members of the public are rewriting history.”
A 1,700-year-old Roman gold coin dug up in a field in south Wiltshire, is expected to fetch £30,000 at auction.
Found by a metal detecting enthusiast, the coin dates from the reign of Emperor Licinius I.
One of only four known examples, the coin was struck for the emperor in AD 313 to distribute at special occasions
The enthusiast, who wishes to remain anonymous, said he “thought it was the foil from a packet of Rolos” when he first pulled it out of the mud.
A museum has appealed to two metal detector wielding treasure hunters to donate their amazing findings to their collection.
The Norris Museum in St Ives, which tells the story of Huntingdonshire through the centuries, has expressed its interest in exhibiting a Tudor silver gilt pin and Roman silver finger ring – both found in the fields of Somersham.
Senior coroner for South and West Cambridgeshire, David Scott Morris, presided over the two treasure trove hearings in Huntingdon yesterday, in which he heard about the finds and declared both items as British treasure.
A rare coin from the reign of ill-fated Roman emperor Vitellius has been dug up in Swindon and could be the only recorded find of the currency in Wiltshire.
The piece of copper alloy is an unusual discovery as he ruled for just eight tumultuous months before being defeated on the battlefield and executed.
Discovered in Wanborough, the coin depicts the emperor in a slightly more flattering light than others, showing his ruddy complexion and flabby cheeks.
Vitellius reigned in 69AD, the year of the four emperors, which was around 200 years before Roman villas sprang up across Wiltshire in a period of prosperity.
A Roman cavalry helmet sold for £2.2m after it was discovered in a Cumbrian field is to go on show in Carlisle from Friday.
The Crosby Garrett Helmet, named after the village near Penrith where it was found using a metal detector, will be displayed at Tullie House Museum.
Museum director Hilary Wade said it was “one of the most extraordinary objects from the Roman period in Britain”.
Police in Episkopi [Cyprus] arrested a 48-year-old man late on Wednesday for allegedly using a metal detector in an area where it is prohibited.
Officers were tipped off that an unknown man was using a metal detector near the ancient Curium theatre in the Latsidia area of Episkopi.
The 48-year-old was searched by police who found and confiscated the metal detector, various digging tools, pieces of scrap made of lead, a lead plate and four small bronze coins.
Two museums are set to benefit from ancient treasure unearthed by metal detector users at sites near Huntingdon.
The Museum of Archaeology and Anthropology in Cambridge wants to acquire a hoard of 140 rare Roman coins dating back to the third century and the Norris Museum in St Ives, has expressed an interest in a medieval silver-gilt ring.
Assistant coroner Belinda Cheney declared both finds to be treasure at an inquest in Huntingdon.
The finds were made by metal detector users hunting on farmland in Huntingdonshire with the landowner’s permission.