A metal detectorist has uncovered Finland’s largest known Viking Age coin hoard, revealing thousands of silver coins buried near the town of Sysmä. The coins have a preliminary total weight of approximately 4.5 kilograms, more than twice that of the country’s previous record-holding find.
The discovery is still largely concealed beneath soil and corrosion. Because the coins have not yet been cleaned, separated or counted, their exact number, date and geographical origins remain unknown.
Two containers buried 12 meters apart
Metal detector enthusiast Kalle Lappinen discovered the hoard on September 3, 2026, near the center of Sysmä in Finland’s Päijät-Häme region. Archaeologists examined the site the following day and recovered the material under the direction of Esko Tikkala of Lahti Museums.
The silver had been placed inside two birch-bark containers buried between stones at a depth of approximately 45 centimeters. The containers were found about 12 meters apart, an unusual arrangement that archaeologists will need to examine as they reconstruct the circumstances of the deposition.
In addition to the coins, the hoard contained a fragment of payment silver, also known as hacksilver, as well as a silver bracelet, a silver mount and a silver bead. Their presence shows that the deposit was not composed entirely of minted currency.
Thousands of coins await identification
Lahti Museums estimates that the hoard contains thousands of silver coins, although no definitive count is yet available. Conservation work will be necessary before specialists can examine inscriptions, portraits, symbols and minting details preserved on their surfaces.
Those features may eventually establish where the coins were produced and narrow down when the two containers were buried. The youngest coin in a hoard is particularly important because it provides the earliest possible date after which the deposit could have entered the ground.
The National Museum of Finland notes that thousands of Viking Age coins minted between the ninth and eleventh centuries have previously been discovered across the country, most of them in hoards. Such finds can include coins originating far beyond Finland, reflecting the movement of silver through extensive exchange networks.
No mint or place of origin has yet been confirmed for the Sysmä coins. Until the material is cleaned and identified, the discovery is best described broadly as a Late Iron Age or Viking Age coin hoard rather than assigned to a particular century.
A Finnish record dating back to 1895 is broken
Finland’s previous record was held by a Viking Age hoard discovered at Nousiainen in 1895. It contained approximately 1,700 coins and other objects with a combined weight of around 2.2 kilograms.
The Sysmä coins alone weigh approximately 4.5 kilograms, making the new discovery substantially larger. The number of coins could also exceed that of the Nousiainen hoard, but this will remain uncertain until the pieces have been separated and counted.
Beyond its record-breaking weight, the discovery offers archaeologists an opportunity to study how a large quantity of silver was concealed. The survival of the two birch-bark containers, their placement among stones and the distance between them provide archaeological context that may prove as informative as the coins themselves.
Why the silver was buried—and why it was divided between two locations—cannot yet be answered. Cleaning, conservation and numismatic analysis will now determine whether the Sysmä hoard can reveal who assembled it, when it disappeared beneath the ground and how its coins reached Finland.
Cover Image: Thousands of silver coins, a bracelet and other objects recovered from Finland’s largest known Viking Age coin hoard. Credit: Esko Tikkala / Lahti Museums