Could there be more documents written in voynichese ?

[oshfdk]

I think we can safely assume that the alphabet is an invented one, and that the Manuscript is the only one that uses it. Any similar manuscript at any time in its history would have aroused the same curiosity, with each owner in turn being equally puzzled by it. News of such another rare and remarkable manuscript would have spread and it would have already come to light.

I'm not familiar with the world of medieval manuscripts, but I think the fame of the Voynich MS is somewhat accidental.

As far as I understand, the manuscript was virtually unknown between ~1680 and 1912 for over 200 years, sitting in various libraries and archives. If Wilfrid Voynich didn't put some extra effort into making the manuscript known to the public, with bold claims that could rewrite the history of science, I think it would have likely remained a little known curiosity in some private library.

If some other manuscript showing Voynichese turned up in the past 20-30 years, I guess it's probable its value would have been recognized, because VMS is quite a celebrity with documentaries, news articles and publications about it. But 50 or more years ago, I think people would have just filed it under "unknown cipher MS" and forgotten about it. Especially, if it's not a big illustrated MS, but a few pages, like those that have been cut out of the very Voynich MS. I'm not sure these have been destroyed or otherwise lost, I think it's quite possible they are still sitting in some folder or envelope that hasn't been opened for the past 50 or more years.