[skdfhksdf]

The vellum was carbon dated not too long ago, indicating that the book dated back to the 15th century: http://phys.org/news/2011-02-experts-age.html

[benbreen]

I'd seen that, but I'm wondering if there's any way to use spectroscopy or some other technique to determine roughly what part of the world the vellum came from. It's been shown to be possible with wine:

http://www.ncbi.nlm.nih.gov/pubmed/23682581

And (I think this one is really fascinating) some researchers at the Louvre awhile back even used spectroscopic analysis on a painting by Murillo to determine that the obsidian he painted on began its life in a 14th century Aztec obsidian mine!

http://adsabs.harvard.edu/abs/2005NIMPB.240..576C