What's the evidence that the colors were added later?

[Jorge_Stolfi]

Back to the topic of this thread, the "Paint Is Original" theory made one testable prediction: that the folio number on You are not allowed to view links. Register or Login to view. would be on top of the green paint.   That prediction was finally tested at the Folgers workshop, and found to be false.  Supporters of that theory now have to argue that the test did not quite show what it is said to show...

Back away from the topic, another prediction of the MRT is that very high resolution images (3000 dots per inch or more) will clearly show original ink peeking out from under the Rt1 ink, like (A1,A2,A3) in this McCrone image:

   

All the best, --stolfi