The Pontifical of John of Neumarkt (d. 1380)?

For about 20 years I have wanted to solve a puzzle concerning a bifolium from a grand Pontifical, later used as binding-waste. This week I had a breakthrough.

One side of the bifolium is shown above, and the other below. It is substantially complete, though creased and somewhat damaged (as binding waste almost invariably is), yet impressive due to its large size: about 39cm high by 57cm wide, the ruled space of the text in two columns of 21 lines being about 25cm by 18.5cm.

A 15th-Century Breviary in Douai, Probably Made At Bury St Edmunds

Earlier this year I visited a few libraries in the far north of France, including Douai. One manuscript that I pre-requested to see is their MS 167, an English 15th-century Sarum Breviary. Such a text would not normally be of much interest to me, but for the fact that, based on the images online, I thought it was probably produced at Bury St Edmunds, in Suffolk, one of few English regional styles of illumination that I can recognise with some confidence.

By asking to examine the manuscript in person I hoped that I might find my gut-feeling confirmed, for example by finding that St Edmund and other East Anglian saints are given special emphasis.