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[Koen G]

the social circle of Kircher would not have  been able to read them, especially not in extreme cases like the Vms.

That's an interesting remark if it is true. So they stopped reading manuscripts all together, even the social circle of Oedipus Aegyptiacus himself? It would explain Baresch' exotic take on the script. But on the other hand I would still expect these guys to have been somewhat in touch with medieval manuscripts.