[split] Jorge's Retracer Thread: darker ink, retracing of text and drawings

[Jorge_Stolfi]

My best guess is that someone was reading the book while eating, and let a drop of sauce fall on f102v1 or f103r.  The drop was fairly thick (say, 2 mm) but small (say less than 5 mm across). So the guy did not notice it and closed the book.  That caused the drop to spread out to the extent of the current stain.  Someone (the same person or someone else) eventually saw the stain, while it was still fresh, and wiped it off.  Then saw that the ink had come off too...

All the best, --stolfi