(11-09-2025, 07:51 AM)Aga Tentakulus Wrote: You are not allowed to view links. Register or Login to view.Have you considered that the artist may have sketched with a pencil lead tip?
PS. The circles in the Zodiac and Cosmo sections
may have been done in pencil, originally.
The thinnest (~0.1 mm) and lightest parts of those circles ('A' in the f71v clip below) are very smooth and the radii seem to be all different, so they must have been made with a compass (as opposed to by hand or by tracing around a template).
There is a pinprick in the parchment where the "dry" point of the compass ahould have been planted. It is best seen in the transmitted-light multsipectral images:
However, most circles fail to close: the two ends often miss each other by up to a millimiter or two, and continue past each other by a centmeter or more. I suppose that these defects could be explained by the parchment warping during the tracing, or by a compass that was not as rigid as it should be. Needless to say, if any part of any circle was originally traced with a compass, then all circles must have been originally wholly traced that way.
Pencil would be the most convenient choice for drawing with a compass. And the thinnest and lightest parts of the circles look just like one would expect from pencil. o we may assume that all circles where originally wholly traced with pencil.
However, some parts of the circles are a bit thicker (~0.3 mm) and darker, with the light yellowish-brown color of the ink used on that page. See 'B' in the clip above. Those parts of the circles must have been retraced in ink.
There are compass attachments for drawing circles in ink (I used one in college, in the technical drafring class) but I don't know how common those were in the time and place where the VMS was scribed. Anyway the Scribe may have improvised some eqivalent arrangement, e. g. a sharp quill attached to the compass.
However, those inked parts of the circles sometimes are jittery, not as smooth as the penciled parts, and in a few spots they deviate from the underlying penciled circles. This is best seen on that same page, in the circles bounding the inner text band, around 03:00:
Here 'A' are the original circles (~0.1mm, light, and smooth), and 'B' are the retraced ones (~0.3mm, darker, jittery). The latter deviate from the former by ~0.4 mm in the indicated spots.
So I am fairly convinced that those inked parts of the circles were not re-drawn with a compass, but were retraced with free hand.
One puzzling detail is that these "medium-thick" retraced circles also fail to close, like the original thin traces did. If they were retraced by the original Scribe, I would expect that he would use the occasion to fix that defect of the penciled traces and join the two ends. My explanation is that the Retracer was not the original Scribe, but someone who had been hired to restore the faded parts of the book -- and this person thought that he ought to retrace the original as faithfully as he could, defects and all.
And then there are sections of the circles which are clearly retraced with a broader pen, and even less care. Like 'D' in the first clip...
All the best, --jorge