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

[Bernd]

many years later another person (the "Retracer") went through the manuscript, retracing many faded glyphs and figure details in a distinctive very dark ink.  He may have been the same who retraced some lines of page f67r2 with red ink. But this Retracer also added some fancy details that apparently were not in the original (such as the crowns and multi-lobed "shower caps" on some of the Zodiac nymphs, e.g. the outer one at 05:30 on Scorpio).

Is there any way to establish how much later this could have happened?