What to make of the big stain on f116v
#4
(23-06-2026, 04:15 AM)Zauriek wrote: You are not allowed to view links. Register or Login to view.(A) By the spread and finish of the border of the split, is like the manuscript was placed over a leveled surface and a soft layer of water (maybe a rainy day) started to spread

That is one possibility, although the surface may have been slanted (like an old-style writing desk).  But it seems also possible that the book was upright and the water flowed into the spaces between the last page (which is not flat) and the back cover.

Quote:being absorbed by the paper gradually until it reached a "limit of absorption"

Since the material is vellum (or parchment) rather than paper, the absorption would have been minimal.  Check the spill on f93r.   AFAIK vellum was lightly rubbed with rosin to make it slightly water-repellent, so that the ink would not spread out (as t would on a water-loving surface).

The vellum may have been permeable to oily ("non-polar") liquids.  Compare the "ketchup" stains on f103r,  f103v, and f104r.  
  • The spill on You are not allowed to view links. Register or Login to view. softened the ink so much that when the stuff was wiped off the ink was all but completely erased too (and then was partly retraced).  
  • Some of the "ketchup" managed to flow through the vellum and created a large stain on f103v.  But this stain has a fuzzy boundary and does not seem to have affected the ink -- except perhaps in a small region in the middle, darker and with a sharp border.  
My interpretation is that the larger fuzzy stain on You are not allowed to view links. Register or Login to view. consisted mostly of the oily component of the "ketchup", while the smaller stain in the middle consisted of a bit of the watery component that managed to get through.

[quoe]there is no horizontal or vertical drag of the spread indicating cleaning[/quote] 

No sign of wiping below the line (B), agreed.  But what above it? 

Quote:The square shape that start over the B shape looks less affected by the water than the bottom part of the page.
 

... or the area above (B) was wiped ...

Quote:[is just observation i do not have credentials of any kind on this matter.]

We are all amateurs when it comes to the VMS...

All the best, --stolfi
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RE: What to make of the big stain on f116v - by Jorge_Stolfi - 23-06-2026, 07:44 AM

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