conservation survey notes 1
A new series of illustrated posts inspired by interesting things encountered during the condition survey of Balliol’s medieval manuscripts – a bookworm’s-eye view of common and unusual problems and solutions, if you will. We begin with Balliol MS 156 (12 century Jerome on Isiaiah), f 2v.
At first glance the text looks rather abraded, as though it has been rubbed. But lift the page and the real problem becomes clear…
Classic iron-gall ink corrosion – the ink was made too acidic and has eaten away the parchment, leaving more or less, and in some cases letter-precisely, text-shaped holes. Fortunately, in this manuscript at least the problem does not continue past the first few folios – somebody must have made a new pot of ink with rather less acidic proportions! Also clearly visible here are several old parchment fills or repairs at the edges of the page.