An amateur metal detectorist has uncovered thousands of silver coins in southern Finland in what archaeologists say is the largest Viking-era coin hoard ever discovered in the country.
The extraordinary find was made near the church village of Sysmä on 3 September 2026 by metal detector enthusiast Kalle Lappinen.
Archaeologists inspected the site the following day and recovered the hoard under the supervision of Esko Tikkala, an archaeologist with the regional museum.
According to Lahti Museums, the discovery is the largest known coin hoard dating from Finland’s Late Iron Age, a period that encompasses the Viking Age.
The cache contains approximately 4.5 kilograms of silver coins, although the individual pieces have yet to be cleaned, separated and counted.
Researchers already believe the hoard contains thousands of coins.
Its precise age and composition will only become clear following further conservation and analysis.
Silver buried in two separate containers
The discovery is particularly unusual because the valuables were divided between two deposits rather than buried together.
The coins and other silver objects had been placed inside two containers made from straw and buried approximately 45 centimetres beneath the ground. The containers were positioned among stones around 12 metres apart.
Alongside the coins, archaeologists recovered several other silver objects, including a fragment of silver, a bracelet, a clasp and a bead.
The survival of evidence for the straw containers could potentially provide researchers with additional information about how the valuables were deliberately concealed.
It is not yet known why the silver was buried, who owned it or whether the two deposits were concealed at the same time.
Previous record more than a century old
The Sysmä discovery significantly surpasses what had previously been regarded as Finland’s largest known Viking-Age coin hoard.
That cache was discovered in Nousiainen in 1895 and contains approximately 1,700 coins together with other objects. The entire assemblage weighs around 2.2 kilograms.
At approximately 4.5 kilograms, the newly discovered Sysmä coins alone weigh more than twice as much.
Although archaeologists have yet to establish an exact coin count, the presence of thousands of pieces means the discovery could provide an unusually large body of evidence for the study of Viking-Age Finland.
Silver coins found in hoards can help archaeologists reconstruct trade connections, the movement of precious metals and patterns of wealth during the period, particularly when the coins can be identified and dated to their places of origin.
The next stage of the investigation will involve carefully cleaning and separating the coins before specialists identify and catalogue them.
Only then will researchers be able to determine the hoard’s precise size, chronology and composition — and potentially establish when one of the largest concentrations of Viking-era silver ever found in Finland was hidden beneath the ground.
Header Image Credit : Esko Tikkala, Lahti Museums
Sources : Lahti museums
