Just after midnight, while much of London sleeps, figures carrying headlamps and small shovels quietly descend the slippery banks of the River Thames. Kneeling in thick mud beneath bridges and beside ancient embankments, they sift through silt searching for fragments of forgotten history. Some discover Roman coins. Others uncover medieval jewellery, Victorian toys or centuries-old bones. These modern treasure hunters are known as mudlarks, and for many of them, the Thames is not simply a river but a vast archaeological archive hiding thousands of years of London’s past beneath its tides.What makes mudlarking especially fascinating is that the river never fully stops revealing history. Every tide reshapes the shoreline. Every storm or shift in the mud can expose objects that may have remained hidden for centuries. Along the Thames foreshore, ordinary people can still stumble upon pieces of Roman Britain, medieval London or the Victorian era with their own hands.
The Mudlarks searching for history still buried under London
Mudlarking has existed along the Thames for centuries, although its meaning has changed dramatically over time.In the 18th and 19th centuries, mudlarks were usually among London’s poorest residents. Men, women and children searched the riverbanks for coal, rope, scrap metal or anything else they could sell to survive. Victorian writers often described them as desperate figures wandering through dangerous mud in filthy conditions.Today, mudlarking has evolved into a tightly regulated hobby practised by licensed history enthusiasts, archaeologists and collectors. Modern mudlarks must obtain permits from the Port of London Authority, which manages access to the river foreshore.For many enthusiasts, however, the appeal remains deeply personal. The excitement lies in touching objects last handled by someone hundreds or even thousands of years ago. Unlike traditional archaeology, mudlarking places ordinary people directly in contact with fragments of the past. A single object pulled from the mud can suddenly reconnect modern London with lives long forgotten.
The obsession with the lost Doves Type
Among the best-known mudlarks is Jason Sandy, an architect and property developer who has spent years combing the Thames foreshore near Hammersmith Bridge.Sandy has uncovered Roman hairpins, medieval coins and countless historical artefacts during more than a decade of mudlarking. But one story became an obsession: the search for the lost Doves Type.The Doves Type was created in 1900 by T. J. Cobden-Sanderson and Sir Emery Walker, founders of the famous Doves Press. The elegant typeface became celebrated as one of the finest examples of typography from Britain’s Arts and Crafts movement.But after a bitter feud between the two men, Cobden-Sanderson secretly dumped the metal type into the Thames during hundreds of late-night journeys between 1916 and 1917 rather than allow Walker to inherit it.Historians estimate that more than a tonne of metal type, possibly around 500,000 individual pieces, was thrown into the river.The story has since become almost legendary among designers, historians and mudlarks because the destruction of the Doves Type represented more than the end of a business partnership. It was also the deliberate disappearance of one of Britain’s most admired typefaces.“It is kind of on everyone’s bucket list,” Sandy told the BBC. “Every mudlark wants to find some, and I’m just one of the lucky few that has found so many.”
A centuries-old artefact uncovered from the muddy banks of the River Thames during a modern mudlarking search.
Searching for ‘Mudlarking gold’
For years, Sandy searched beneath Hammersmith Bridge hoping to uncover pieces of the lost typography.At one point, he believed he had found hundreds of pieces, only for graphic designer Robert Green to later inform him that none of them were genuine Doves Type.“I had been searching on the wrong side of the bridge for five years,” Sandy admitted.But he kept returning.Then, during unusually low tides last September, Sandy discovered a rare exposed patch of riverbed after a massive accumulation of wet wipes known locally as “Wet Wipe Island” had recently been cleared away.Within less than an hour, he recovered 12 genuine pieces of Doves Type from the mud.“I look like a gold miner panning for gold,” Sandy said, “but I’m actually panning for the lost Doves typeface.”For many mudlarks, such discoveries represent the ultimate prize, sometimes referred to as “mudlarking gold”.Yet the attraction is not only financial or historical. The thrill comes from the possibility that an object lying unnoticed in the mud may carry a direct connection to a dramatic human story.
Strange encounters beneath London’s bridges
Mudlarking is not always peaceful.While searching beneath Hammersmith Bridge late one night, Sandy was suddenly approached by multiple police officers after someone reported suspicious activity near the bridge.“I thought I was alone,” he recalled. “Then I heard sirens coming towards the bridge.”After showing officers his mudlarking permit and explaining the story behind the Doves Type, Sandy said the police laughed and eventually escorted him safely off the foreshore.But some of his encounters have been far more unsettling.Sandy told the BBC that he has occasionally discovered human remains while mudlarking and has had to contact police.“I’ve had to phone them because of dead bodies that we find in the river, and also even bones,” he said.In another strange incident, he reportedly discovered the freshly shed skin of a 6ft boa constrictor near the water’s edge, possibly from an abandoned exotic pet.The unpredictable nature of mudlarking is part of what keeps many enthusiasts returning. Every visit to the foreshore carries the possibility of discovery, surprise or even danger.
Why the Thames keeps revealing history
The Thames is uniquely suited for mudlarking because of its tidal nature.Twice each day, the river rises and falls dramatically, exposing layers of mud that have preserved objects for centuries. Storms, erosion and changing tides constantly reveal new artefacts hidden beneath the surface.Archaeologists often describe the Thames foreshore as one of Britain’s most important archaeological sites because it contains traces of nearly every era of London’s history, from Roman Britain to the Industrial Revolution.Mudlarks have discovered Roman pottery, medieval pilgrim badges, Tudor shoes, clay smoking pipes, coins, weapons, jewellery and even prehistoric bones over the years.Some finds eventually end up in museums including the London Museum and the Victoria and Albert Museum.At the same time, mudlarking also raises difficult questions about preservation and ownership. Responsible mudlarks are expected to report historically important discoveries, and many work closely with museums and archaeologists to help preserve London’s history rather than simply collect objects privately.
Returning lost history to London
For Jason Sandy, mudlarking is not simply about collecting objects.Recently, he donated dozens of recovered Doves Type pieces to Emery Walker’s House, now managed by the Emery Walker Trust.The museum preserves the home connected to both Walker and Cobden-Sanderson, keeping much of its original Arts and Crafts interior intact.Sandy said he hopes eventually to help reconstruct a complete alphabet from the recovered type pieces.“I just love the story and feel honoured that I’m able to make a humble contribution,” he said. “And give them back the lost type that was in the river for over 100 years.”That sense of stewardship is increasingly common within the mudlarking community. Many enthusiasts see themselves not simply as collectors but as temporary custodians of objects that belong to London’s broader cultural memory.
Why mudlarking continues to fascinate people
Part of mudlarking’s appeal lies in uncertainty. Every tide has the potential to reveal something unseen for centuries.For many mudlarks, the river becomes something almost alive, constantly giving up pieces of memory while hiding countless others beneath the shifting tides. The Thames does not preserve only objects. It preserves stories, conflicts, trade, loss and fragments of ordinary lives that would otherwise disappear from history entirely.And somewhere beneath the dark waters of the Thames, thousands more pieces of the lost Doves Type may still remain buried, waiting for another mudlark to find them.
