Bobbio Missal, detail of fol. 8r showing clear prickings and just-visible dry-point ruling
Bobbio Missal, fol. 8r, full image.
Interestingly the Bobbio Missal *is* ruled, the scribe just doesn't care. Each line of writing does more or less end between two prickings, but it doesn't seem to occur to the scribe to use the ruled lines to establish a baseline.
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