How did the Mask find its way from the Tempel of the sun,Maya ruins of Palenque, in the state of Chiapas and landed in Skeberg Dalarna Sweden ?

Tempel of the sun, Maya ruins of Palenque, in the state of Chiapas, Mexico

Erik Grate´s Studio in Skeberg in the state of Dalarna, sweden
( the photo represents a cottage in Dalarna and is not the studio in Skeberg)
"Some things you should leave alone and not rummage around in"
Wish to remain anonymous Sweden
"Pre Columbian Art is the most incredible works of art to find on earth"
JH Graffman

Several possible scenarios
The mask in Sweden is original, stolen in connection with the exhibition at Liljevalchs and replaced against an exact copy/forgery.
The mask in Sweden is original, stolen in connection with the exhibition at Liljevalchs. To avoid a scandal, all parties kept quiet about it and had an exact copy made, which is now found in Mexico.
There are two virtually identical masks.
Regardless, the Swedish mask is genuine –
Maria Dahlström Sweden
The slideshow shows spreads from Swedish media in 1952
Exhibition at Liljevalchs 1952
The theory,
In 1952, Liljevalchs hosted a world exhibition of pre-Columbian art, the first exhibition was in Paris and the second in Stockholm. In collaboration with the National Museum of Mexico, a priceless national treasure was shown to the world.
It was at Liljevalchs that the world's biggest theft of all time took place!
The exhibition, which was valued at SEK 1 billion, was suddenly unguarded, the security guards took a few hours off and just then this evening there was a burglary.
The exhibition was closed down and a police investigation began, but after a few months the investigation was closed and classified as sabotage and attempted burglary?In the beginning of 1953 everything was shipped back to Mexico.Nothing of value was lost or destroyed, according to the person in charge of the exhibition of the National Museum of México.
Our investigations show that a number of people participated in the theft.
And that the largest theft in the history of the world took place in front of everyone's eyes.The mask is evidence, it was shown to the world and then disappeared in the theft, later too be found in a box hidden in a piece of furniture 60 years later.
