An interesting email on the Ethiopian literature email list:
List members may value knowing that one of the positive results of the imaging of the 1513 first Ge’ez book – Psalterium Æthiopicum – Rome, Potken,
http://www.kingscollections.org/exhibitions/specialcollections/psalter1513/was the use of Infra Red imaging to ‘remove’ spilled ink. Please see:-
This is a printed text; but no doubt the same would apply to manuscripts. These are days of miracles and wonders indeed.