These palimpsests had originally belonged to the famous convent of St Columba at Bobbio, and had been written over by the monks with the acts of the first council of Chalcedon.
It is on his skill as a reader of palimpsests that Mai's fame chiefly rests.
manu ejusdem Bosii.4 The oldest evidence now existing for any works of Cicero is to be found in palimpsests written in the 4th or 5th century.
Fragments of the lost speeches pro Tullio and pro Scauro were discovered in two Milan and Turin palimpsests.
And, when you watch the tapes, there are also visual palimpsests.