Dear Joćo,
we have used a method of establishing the identity of the ink used on a
paper. If you have the date of one ms. written with ink you can
establish whether another ms. is written with the same ink or with
different ink, i.e. at about the same time or not. The results are based
on a radiologically based analysis of the mineralogical composition of
the ink.
If someone wants to know more, he or she can contact me.
Best wishes
Burghard.
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