(02-05-2024, 09:11 AM)nablator Wrote: You are not allowed to view links. Register or Login to view. (02-05-2024, 01:53 AM)proto57 Wrote: You are not allowed to view links. Register or Login to view.(and yes those ARE perfect overlays you see there: the lighter areas are a reduced opacity layer of copies of the other signature, date, etc.. It is as though they were traced, or a pantograph was used, or perhaps a camera lucida)
Your fake overlays are perfect because they are not overlays. It is impossible to overlay the images so perfectly.
The "r" and "a" of Pragae should be separate in the overlay as it is in the 19 August letter, not connected as in the 10 September letter, the distance between "a" and "g" shorter, the "g" and "ae" connected. The "1"s are completely different, the loops of the second "6" are not the same width.
The signatures are similar, same handwriting, but many details are clearly different: for example the spikes on the two "M", the "a" and "d" of "a Cronland", those details that you show as perfectly identical in your fake overlays.
Well of course you have added perimeters that I never claim, and do not think are part of my suspected copying here. Maybe you have made some assumptions, which cause you to believe I am making claims about this that I have not? I'm not sure, but the images speak for themselves, and anyone can do what I have done and see that I have accurately demonstrated these sets of letters and numbers are a perfect match, aligning over letters and numbers from a letter in the Carteggio. I thought my graphics were clear about this, but this might help clear up your misunderstandings about them:
1) You've assumed, on your own, that I was claiming to have found the relationship and orientation of the individual words to be the same distance as the originals. It never occurred to me that this would assumed, or that anyone would think it necessary that this be the case to realize these seem to be perfect tracings. No, the individual words are not the original spacing from each other... if these were traced, the words were copied separately, with small differences.
2) Even if backlighting was used, like a window, or a pantograph, or Camera Lucida, they of course cannot control the ink line. There are and will be small differences with thicknesses of lines, perhaps the small "spikes" you note, and so on. EDITED TO ADD: And of course a pantograph only copies the line as traced by the operator, if the operator deviates at all, so does the copy. But another point: considering the presumed difficulties on producing a quill pen line with a pantograph, if one was used here, I would see it for light guide lines, and not the inking. But in order of probability, I would suspect tracing, then Lucida, and a distant last, pantograph.
You are just demanding an almost modern level of graphics art manipulation abilities, like cut and paste and such, that just would not exist in the early twentieth century. Most people who have seen this seem to understand this, I've never seen these complaints before. Perhaps it would help if one had used these techniques themselves? I'm not sure what your experiences with graphics are, but this could explain it.
I've used quills and other pens, and done graphics artwork, such as posters, calendars, cartoons, and textile design. One of my designs was a woven blanket for Sears... a modified replica of a 600 (now closer to 650!) year old Peruvian design inspired by whimsical sea and land animals. Part of the process I used involved tracing the originals, then transferring those tracings to my new version. Was the spacing BETWEEN the animals the same as the original design? Of course not. Then I modified the designs... and even created my own interpretation of what the ancient artist would have done, and created my own version of a real animal in their style, because I wanted a new animal for balance (ironically, to this day I can't remember which animals were original, and which was mine! An effect that happened many times in the history of forgery). Anyway, I've used a light table, and also tracing paper, and elements from the original can be perfectly copied, and rearranged on the new versions... this is one method I suspect has been done here.
As for the way I created my overlays of the two letters was to create a new layer in a graphics program. I then copied the second letter into that program, and moved the words of it over the words of the base layer letter. I lessened the opacity of the upper level, so that it was slightly translucent... not sure how much, maybe it is 30% or so? I do this until both the overlay and the original on the base layer can be seen at the same time. I think most readers of this are familiar with this technique, and of course can duplicate my results.
I also experimented with the Camera Lucida, as I've wondered if it was the unspoken, unreported tool of the forger. They were very popular in the late 19th through early 20th century. One brand alone sold over 5,000 of the devices in the early 20th century! Yet, we practically never hear of them.
The way they work is to create an optical illusion by seeming to project an image of your subject onto your blank medium. They don't really, the copier only sees the original on the medium, like a mirage done with a special prism. Here is my setup for one image:
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Will the pen line be identical? No, of course not. The purpose is to duplicate the orientation of the elements, and not to expect nor achieve a "photo-realistic or copy/paste" level of perfection.
It is not known how the forger of the Vineland Map copied from the engraving of the source map he/she used, which was discovered to be a copy of the Bianco World map in one limited publication. The forger inadvertently copied a lake which was truncated in the 18th century engraving, but not on the original Bianco. Are the line widths and lengths and style of the forged Vineland Map identical copies of the lines on the engraving? Of course not, that would be hard to do, and counter productive. So the same here: If a person wanted to copy a signature well enough to falsely appear as though it was by an original 17th century version, using one of these copy methods would allow this, with all lines and shapes ending up the same, but of course not with the level of exactness you are now insisting as a standard. I believed that would be a "given", but don't really mind explaining this to you.
By the way, your criticisms also reminded me that Thomas Jefferson, a prolific writer and letter writer, used a pantograph to copy his own letters. As he used a quill, I've often wondered how he oriented it on the copy side, and how he inked it. But I would never expect, and would doubt that the lines of the copies were perfect representations of the originals, in their line widths and so on, as ink and paper allow some variations. But the style would certainly be "overlay identical", I would think.
As an additional point of interest, on one of my visits to the New York Public Library Rare Map Room, for a Voynich-related research project, I also requested to see a copy of the book the Vineland Map was copied from. I was curious as to the scale of the book's engraving, which I could not determine online. I did this because the Camera Lucida can reduce and enlarge from the original, and even alter the ratio between length and width by tilting the original either up/down or left/right. I wanted to see if the forger had traced, or possibly used a Lucida. If exactly the same proportions, then tracing would be suggested. If a different scale, then the Lucida might explain it. It is a different scale from the original, so probably not a tracing, anyway.
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It is a working theory of mine that the Camera Lucida was a popular tool of the forger in the late 19th and early 20th centuries. It was small enough in its case to slip into a coat pocket, and usable on sight as a copy tool, and probably would not be objectionable staff, in use. I've brought mine... a 1920's or 1930's model, but identical to those made for decades prior... to libraries, and clamped it to the reading table and went to work.
I hope to publish my article on all this at some point, but maybe as a blog post... not sure. Its been on the back burner for years now, and I really ought to get back to it. I think my findings would be valuable in identifying forgeries, as there are cases in which an item is described as an almost photo-copy of some original, yet in some proportions seems elongated or truncated. This could be an effect of the use of a Lucida, especially in the case of library-field work, where one would have to prop up the source book vertically, which is hard to do. If one tips it at all, the copy is elongated vertically. But also, if a copier wanted to fit an original to differently proportioned medium, that can be done on purpose with the Lucida.
I think there are other "tells" which might point to the use of a Lucida, such as drop out of detail in dark areas. With Voynich's known forgery, the Columbus Miniature (which interestingly has a very Vinelandesque map on the back, also forged), the places the forger invented details happen to be in the darker areas of the original (a De Bry engraving) they copied from. When I copied the same originals with the Lucida, I found the detail in that area very difficult to resolve. So perhaps, I thought, this was the tool used to do it.
Rich
PS: interestingly, I knew nothing of the existence of the Camera Lucida at first... I learned of them "in reverse", after seeing cases of anomalous works, which were being noted for their "almost photorealistic" similarity. I asked myself the question, "What if there were an optical device which a forger or other copyist could bring to a library or collection, like an opaque projector, but without the need for a built in light source?" Using various search terms, I found the existence of the Lucida.