The Voynicombe manuscript is the only surviving copy of the Voynicombe text.
It was acquired in the late 1960s and early 1970s by a private collector.
It has been on display at the National Museum of Denmark since 1973, but the Danish government decided in 2014 that it should be sold for a nominal sum of 300 million kroner ($3.5 million).
The Voynicommbe manuscript has been the subject of multiple scientific, historical, and legal controversies.
In the 1980s, the Danish police found an illegal copy of a copy of it in a hotel room.
In 2010, a private collection of Danish scientists purchased the Voynik manuscript, but a few years later it was destroyed.
Now, the government is selling the manuscript for 100 million krone ($1.7 million).
If the sale goes through, the manuscripts will be the property of the government and will be available to scholars and students, but will remain privately owned.