An item included within the collection of manuscript leaves known as Ghent, University Library, MS BHSL.HS.3020 can now be identified as a fragment of the sole surviving English Carthusian antiphonal, and the third extant historiated English antiphonal. Specific features of the chant identify the use as Carthusian, and the illumination localizes the antiphonal’s production to London in the early Tudor period, making it likely that the volume was made for the London Charterhouse.