The “Letters” referred to in the title are the approximately 2,000 items of 17h century correspondence in what is known as the “Kircher Carteggio“, a collection of correspondence with the Jesuit Polymath, Athanasius Kircher. Found in the letters by Georgius Barschius, Godefridus Aloysius Kinner and Johannes Marcus Marci are references to a mysterious manuscript, which they described as having illustrations of “plants unknown to the Germans”, “stars”, “chemical symbolism”, and which was written in an “unknown script”,
As these descriptions do mirror some elements of the Voynich Manuscript, many scholars believe they were discussing that work. And so if they are correct, the Kircher Carteggio would be proof of the existence of the Voynich at least as early as the 17th century.
While I do agree that the descriptions in the letters probably do have some connection to the Voynich, I disagree that the Voynich was the book they were describing. I believe it more probable that Wilfrid saw the descriptions and used them as a “seed” to create a forged Voynich. For one thing, I feel the descriptions a very poor match to the Voynich, and even that they work against the Voynich being the work being referenced. You can read my reasoning behind this on my post, “The Voynich has no provenance”.
But that is not the purpose of this post. Here I wanted to address whether or not Voynich could have had access to the Letters, or the descriptions within them. If he did, it opens the possibility that he used them as a basis for the modern creation of the Voynich. For this reason, the issue of Voynich’s possible access to the Letters, or not, is of the most important and foundational questions in the whole field of Voynich studies.
When I first became aware of the Voynich Manuscript, in 2007, I believed, as many still do, that it was some sort of ancient and genuine work. And although I soon began to have serious doubts about the Voynich’s authenticity and age, these ideas were held in check by the descriptions found in the Kircher Carteggio, along with the prevalent understanding that Voynich could not have seen them.
But then one day (I think in 2013), I had for me what was a revelation, as I had either not noticed it, or it had little importance to me, before then: I learned that the Letters of the Kircher Carteggio were kept with other 30 or so books which Wilfrid Voynich had purchased, purportedly, in 1911/12! The Letters and the books were either at the Villa Mondragone, or the Villa Torlonia in Castel Gandolfo, but they were together. From the site of Rene Zandbergen (at the time, but since altered),
“Among the many valuable books, this collection included the Voynich MS and the bound correspondence of Athanasius Kircher. It was apparently brought to the Villa Mondragone in Frascati, near Rome, where it was kept for more than a century.”
Of course I immediately thought that since he had access to the books he purchased, and those books were with the letters, then why could he not have seen the Letters as well?
Also, the dates of the sale of those books roughly corresponds with my forgery hypothesis. Although the recorded sale of the genuine books from this lot did occur about 1911/12, and my hypothesis is that the Voynich was created between 1908 and 1910, we do not know exactly when Voynich first became aware of those books, or had access to them. It could have been sometime in 1910. But also, my hypothesis does not have a firm “end cap” on 1910, and would allow for a viewing of the contents of the Carteggio in 1911.

Villa Mondragone, circa 1910
When I came to this realization in 2013, I quickly shared my thoughts around the web. But I was told in response, in absolute, incontrovertible terms, that there was no way Voynich could have ever seen, or even known about those letters. Soon, voynich.nu stopped directly stating that the books and the letters were kept together, although the site continued to make the claim the Letters were somehow off limits to Voynich. At some point, I’m not exactly clear when, it was added that the Kircher Carteggio was “under lock and seal”, and totally off limits to all non-Jesuits until the 1930’s. Although I asked several times over the years for the source of this claim, I never got a definitive answer.
In order to see if I could definitively answer the access question myself, I recently re-visited this issue. I admit I was surprised at what I found. For one thing, it turns out that long before the “lock and seal” claims arose, it was already wondered, by some, if Wilfrid could have seen the Letters! One of the reasons for this would be the question as to how Voynich knew the name of George Baresch”. Baresch wrote one of the Letters, and first owned the book being discussed. So if Wilfrid knew of Baresch, it would be natural to think he may have seen the Letters. Here is one example, by Rene Zandbergen, writing to the Voynich Mailing list in 2002:
“I know now that Voynich had seen (or been told about) the passage in Marci’s “Philosphia Vetus Restituta” which Rafael [Prinke] found in Servit and I transcribed a few days ago, and that Voynich had probably _not_ seen the Kircher Carteggio, contrary to what I had been assuming for a while now.
So from this we learn that, up until the alternative possibility for knowledge of Baresch through the “Philosphia Vetus Restituta” arose, it was “assumed” by Rene that Wilfrid could have seen the letters. So what changed since 2002? Why was the idea he could have seen the letters, once accepted as possible, later dropped? Merely finding another possible source for Voynich’s knowledge of Baresch should alone not be enough to eliminate the “access to the Letters” possibility.
Nonetheless, over time, the claims of “Carteggio inaccessibility” solidified. By 2007, Rene wrote to the Voynich.net mailing list (italics mine),
“… until the 1930’s (when the new Collegium Romanum was established, named the Gregorian University) these collections were kept completely hidden from non-Jesuit sources. There is evidence (rebinding of the VMs, pencilled notes in the Carteggio Kircheriano), that they were still accessed by the Jesuits during this time.”
There were many other statements made like this over the years, all stating as fact that the Kircher Carteggio, with the descriptions of the mysterious book, were impossible to have been seen by any “non-Jesuit” until after 1930. Rene’s pages seem to be the original source of these claims, then repeated by others, as his is a seminal (and excellent) source of Voynich information. But are these claims valid and irrefutable, with a factual basis, or are they simply opinion?
During a recent and marathon debate in the comments section of a Voynich Ninja forum post which I started in March of 2024, “I do Listen to the Experts: Do You?”, the conversation turned to many key elements of my theory that the Voynich is a circa-1910 forgery. One of these points was the present one, that is, Voynich’s possible access to the Carteggio. Of course the “they were under lock and seal” defense naturally arose, and so I asked yet again for the basis of this claim. And again, no source was provided. But eventually, Rene Zandbergen wrote this,
“I don’t need to provide evidence that he could not have [seen the Letters] (but I already made it clear further above how likely it is).”
So in that we see that “lock and seal” is speculation. But I still wanted to know the basis for this speculation, if there was any. And here is what I found: First, that the 1893 Sommervogel and De Backer work, Bibliothèque de la Compagnie de Jesus, does not list the Kircher Carteggio, when, it is said, it should be in there. So then the explanation given for this omission is that the Letters must have been purposefully “hidden” from the authors. From voynich.nu:
“However, the main collection of letters, the 12 volumes of the Carteggio Kircheriano, which was already mentioned in De Sepi (1678), is missing. From this we can conclude that this collection was hidden even from Jesuit historians.“
But I strongly disagree that we can “conclude” they were “hidden”. There can be many reasons to speculate as to why the authors didn’t include a reference to the Carteggio in their work, and a purposeful hiding of the Letters is only one of many. And think of this: EVEN if the Letters were purposefully kept hidden from them, they would have (admittedly) already known of them through the De Sepi work. So any omission of a mention of the Letters in their book was clearly voluntary on their part, for some other reason, and not because they didn’t know of them.
Next, when Voynich (supposedly first) learned of the existence of the Kircher Carteggio through the mention of in De Sepi’s 1678 “Romani Collegii Societatis Jesu Musaeum celeberrimum” (yes that’s right, he did know of the Kircher Carteggio!), combined with the above mentioned fact that Sommervogel and De Backer omitted any mention, he and others believed the letters “must be lost”. Note he didn’t think they were “hidden”, or locked away in any way, just, probably, “lost”. And so, he supposedly asked around to see if he could “find” them.
Again, from Rene’s site:
The search for Kircher’s correspondence also
continued, for Voynich found out from a catalogue of Kircher’s museum: De Sepi (1678) that there used to be a 12-volume binding of Kircher’s correspondence, and immediately realised [sic] (correctly as we have seen) that this must be a valuable source for additional information about his MS. When Garland [manager of Voynich’s London shop] could not find any trace of this collection, Voynich decided to find out more about this from Henri Hyvernat, who was in Rome at the time. For an as yet unknown reason, Voynich did not write to Hyvernat directly, but asked his friend William W. Bishop to do that for him. Hyvernat then inquired in Rome about Kircher’s correspondence, and his request reached the foremost expert, Fr. P. Tacchi Venturi (historian of the Jesuits). The latter’s answer was that he himself had already searched for it in all the principal libraries in Rome, didn’t know anything, and was not even aware of the fact that this was a 12-volume collection. He suggested that it was probably lost sometime between 1773 and 1824.”
So, it seems, on the basis of the omission of the listing of the Kircher Carteggio in the Sommervogel and De Backer work, with the inability of Fr. P. Tacchi Venturi to find them, we are to accept this claim that non-Jesuits were purposefully blocked from any access to them. But I don’t see how that follows. And once again note that no one at the time assumed blocked, nor hidden, just “probably lost”. That is an important distinction.
Further note that Fr. P. Tacchi Venturi, Carlos Sommervogel and Augustin De Backer were all Jesuits, and yet still they were unaware of the location of the Kircher Carteggio. But we are told the Carteggio was kept from “non-Jesuits”. So we are to accept that some Jesuits were also keeping other Jesuits from knowing of their location, or even their existence? Some Jesuits knew where they were, and could see them, study them, and even make notes in them, but they were purposefully kept from other Jesuits? Why? This makes little sense to me, and in any case, I see no basis to make this claim.
So I could find no statement, and no known written or assumed policy supporting this relatively recent “lock and seal” contention. I can find no reason to believe that the Carteggio was being purposefully hidden from anyone. This seems to be entirely a speculative, modern revision of the contemporary belief that the Letters were simply lost somewhere. And that situation is perfectly understandable for the ages pre-internet, and pre-computer, when sharing information on stacks of collections relied on catalogs produced at huge effort, by hand, and their existence to be shared by letter, or word of mouth. Discovery of missing items demanded physical searching, correspondence and travel.
From what we actually know, it is simply more likely that not everyone was aware of the Letter’s specific whereabouts at all times in history. And remember, we do know that at least some Jesuits were aware of the whereabouts of the Carteggio, and one of these Jesuits happened to be one Joseph Strickland. This is very important, as I will explain below.
So now that “purposefully hidden” is off the table, as it has no basis in fact, the question becomes , “What do we actually know about accessibility to the Letters of the Kircher Carteggio?” First of all, as I wrote above, the Carteggio was with the 30 books purchased by Voynich. Both were kept together, either at the Villa Mondragone or the Villa Torlonia in Castel Gandolfo. And we know that Wilfrid and Ethel Voynich were long time friends with Joseph Strickland. And Strickland had been a student at the Villa Mondragone (as were his brothers). He later taught there, and eventually he even ran the place, so he likely had very complete access to the collections there. It would be an improbable claim that the Kircher Carteggio was locked away from his access. Also, Strickland was known to have access to the Villa Torlonia, the other possible location of the 30 books and the Carteggio. Again I turn to Rene Zandbergen at voynich.nu:
“What puzzles me most, personally, is the question how Voynich was able to select the manuscripts that he acquired. There are two possibilities.
“The first is that he could see them and make the selection personally. This fits with his descriptions in his 1921 publication, which, of course, have turned out not to be true in many respects. In this case, he would have had to enter the Villa Torlonia in Castel Gandolfo, or the manuscripts would have had to be taken out for a short time, for him to see.
“The second possibility is that he relied entirely on the advice of Joseph Strickland, who could see the manuscripts. What are probably the two most valuable manuscripts: the Didymus and the Marcanova, do not appear in the Jesuit list of books for sale to the Vatican, and both were obtained by Voynich. Essentially all other books that Voynich obtained can be found in this list. Even though it does not play any major role for our understanding of the events, I am tempted to consider that these two manuscripts had been foreseen to be sold to Voynich from the beginning. He would have been given them by Strickland, with the bibliographical descriptions already removed. He may then have negotiated with Strickland (or rather, with the Jesuits through Strickland) about additional books that he would acquire, and in the course of this made his offer of 500 Lire per volume”, then,
“Potenza records that Strickland visited the Villa Torlonia on 25 and 29 April 1912. While there are no details, these dates are compatible with the time frame of the selection and acquisition of the manuscruipts [sic] by Voynich. In this scenario, Strickland would have taken the books with him, and Voynich could have received them from him in Frascati, not necessarily inside the Villa Mondragone.”
So from the several possible scenarios outlined above, we see it is fully accepted that Voynich would have had access to the books he purchased. Well, of course he would, he bought them. And again, we know that the Kircher Carteggio was with those books.
Also consider that Strickland would have been fully aware of Wilfrid’s desire for rare and valuable works, as everyone was. This is undeniable, since he offered the “30 books” to him. And at the same time, Voynich was making inquiries as to the location of the Kircher Carteggio! It is therefore fully understandable that Strickland may have told Voynich about the Letters, or, at least, the descriptions of the “arcane book” discussed in them. Perhaps a Jesuit scholar passed on the information to Strickland, who passed it to Voynich. Maybe Voynich was allowed to sit down with the Letters and pored through them, finding the references himself, or with the help of Strickland. Exactly how it may have unfolded is not important, as it could have happened in a myriad of ways.
In any case, given all the above, we know it is possible that Wilfrid could have seen the Letters. If so, he could have used the descriptions in the Letters as a loose guide, imaginatively embellishing them into the Voynich Manuscript we see today. And although the Voynich Manuscript actually… on critical examination… bears only a weak resemblance to what was written in the Carteggio, his probable hope was that it would pass as provenance. If so, he was correct, as those Letters are used by many as provenance to this day. But to make said provenance work in his time, Wilfrid would have had to prod others into finding the Letters. I think we may see evidence of his doing this, in his goading others, such as Garland and Henri Hyvernat, to look for them. And also, remember, he did this indirectly,
“For an as yet unknown reason, Voynich did not write to Hyvernat directly, but asked his friend William W. Bishop to do that for him”.
Well I might suggest a “reason”: It would not do for Voynich to “find” the Letters, himself, as that would be somewhat suspicious. I believe I have seen parallels to his avoiding such suspicion in several instances. One case is reflected in his letter to Prague asking, asking for information about the name on f1r. And I’ve noted other possible cases of this in the nature of his queries relating to several of his acquisitions. These read to me read more as attempts to fish for professional feedback, and less as genuine searches for knowledge. In any case, he then used the desired professional responses as certifications for his items, while his indirect method of eliciting them provided a layer of insulation from himself.
In the case of Hyvernat and Bishop, he had another body between him and his “inquiry”.
In summary, there is no actual evidence that the Letters were kept from any Jesuits or non-Jesuits, and at most they may have been simply a bit hard to find for some, while their location was known by others. And so, it has become clear to me that there is no reason to believe the Kircher Carteggio was “under lock and seal” during Voynich’s lifetime, nor at any time.
I think I’ve also shown that it is fully possible, and even likely, that Voynich did have access to the Letters, or at least the descriptions found in them. They were not locked up, and the Jesuits knew of them, and Strickland would have known of them, and Strickland knew Voynich. For these reasons, the Kircher Carteggio should not, and really cannot, be used as provenance for the Voynich Manuscript. It seems far more likely to me that the descriptions in the Kircher Carteggio, once Voynich became aware of them, were used as a rough basis to create the fake Voynich Manuscript we see today.


But the same goes for any on the list of experts who are all now said to be wrong. I say, rather than just eliminate their presence, actually explain why they were wrong. Argue with them, don’t simply ignore them. And no, simply saying, “Because C14” does not, should not, suffice. Especially since the dating only tells us when the calf was slaughtered, and not at all when the ink was laid down on their remains. All the content observed, by all these experts, in all their proposed eras, CAN be on that calfskin, if a modern forgery. So explain why they are all wrong, and don’t just tell them to go away.





One more aspect that ties points in this History documentary to my own work is the idea that Voynich hoped to profit from the forgery. To understand why this is key, I have to relate the fact that for the better part of the last decade my theory was rebutted with the claim that, paraphrasing, “Voynich never tried to sell it, therefore he would not have gone through the trouble of MAKING it”. However, in the Beinecke Libary Voynich archives I found the draft of a letter from Wilfrid Voynich, to Romaine Newbold, offering the man 10% of the first $100,000 realized in a sale of the work, and a further 50% of anything over that, should Newbold’s translation attempts lead to the selling of the work. The point being, he was clearly interested in profiting from it, which countered the previous claims he had no such interest. In the History Documentary, Journalist Amory Sivertson cites the figure “$100,000” as an incentive to forgery.
But what I am referring to in this post is an additional and more profound problem with one aspect of the descriptions in the letters.



























Thomas Vaughn, “Lumen de Lumine”: This book (

And along with the bull and mermaid, one might see, as I do, other stylistic and feature comparisons with other Voynich fish and mammals. 

















Thomas Vaughn, “Lumen de Lumine”: This book (
In the past I had wondered if- because of the shape, the positioning, and the assumed medicinal nature of the images on these pages- if this may be related to… ahem… “clysters”, or enema equipment of some sort. Their use for medicinal “colonics” goes back practically 
This reminded me of the other object on f80r which I had modeled, as it also seemed to me a possible candidate as a clyster. Note the above item is also held near the rear of the nymph in the second image, and the context of a possible medical interpretation on these pages I already pointed out. It also has the shape of a bladder, which is one form of enema bag. So I commented about my ideas on the Ninja thread, and JKP pointed to the very same thought
As JKP noted, there are on both the Voynich and above images a row of dots. The Voynich devices “ruffled” end could be interpreted as the bunched end of a tied off bladder such as this. The image is credited as “MS CLM 337”, which I could not find in color at first. However MichelleL11 pointed me to the color copy. It is in the The Mackinney Collection of Medieval Medical Illustrations, and can be seen at the following link: