The Modern Forgery Hypothesis

[Jorge_Stolfi]

Given that you don't accept the text in the Barschius letter to be an adequate description of the Voynich MS, finding one that does fit seems like an impossible task.

Well, there are a few other seemingly encrypted manuscripts that, at the time, were known but not deciphered.  Like the Tables of Soyga. The Rohonc codex even had mysterious illustrations.  

And those are famous because of their material history, not so much because of themselves.  So I bet that there are quite a few more "mysterious undeciphered manuscripts with unidentified plant and astronomical drawings" that have escaped public attention, because thy lack an interesting history, and are just sitting on obscure shelves.  

All the best, --stolfi