The scientists digitized and collected 26 incunabula, books printed before 1501. One of these books is very rare, that is a middle-aged manual on meters published in 1500. There are only two editions in the world.
The scientists digitized and collected 26 incunabula, books printed before 1501. One of these books is very rare, that is a middle-aged manual on meters published in 1500. There are only two editions in the world.