“We would like to thank the national police service for housing the silver Mongolian crown for such a long time,” said museum chief Anders Björklund in a statement.
The crown, part of a woman’s costume from Mongolia, was one of the Museum of Ethnography’s most prized possessions when it first went on display in 1980.
But in 1984 the bejewelled piece of headgear mysteriously disappeared from the museum during a power cut.
A report was filed with Interpol to hinder the resale of the crown beyond Sweden’s borders, but for 25 years staff at the museum were left scratching their heads.
Recently however the riddle was solved when the police service’s main Stockholm offices underwent renovations and a long forgotten bag was found in storage.
Confiscated from a burglar more than twenty years ago, the bag was found to contain an unusual silver crown, along with silver cutlery and a selection of trophies.
When police called the Museum of Ethnography to see if it could shed some light on the find, the museum’s Asia expert Håkan Wahlqvist was dispatched to the station and immediately recognized the stolen treasure.