"For 40 years I have enjoyed this rare tool in my home. In my old age ... I have now decided to return it to the descendants of those who imagined it, built it and used it," the anonymous thief wrote in a typed letter sent to the embassy just before Christmas. The letter was posted from Biarritz in southwestern France and signed by "an ex-thief who was less a thief and more a man passionate about authenticity and real life"... The repentant thief called it a "scratcher", a word he then crossed out and replaced with "Sami fleshscraper" followed by a question mark. Sami refers to the indigenous people of northern Europe, also known as Lapplanders.
This sounds to me like a prank: mail an inexplicable object to a museum, leaving them wondering what in the world it is. Maybe they'll even decide it really is a fleshscraper and place it in the museum.