Keywords: Calendar - British Library Add MS 42131 f3r.jpg Calendar page; from BL Add MS 42131 f 3r the Bedford Psalter and Hours Held and digitised by the British Library circa 1414 1422 Illumination parchment Institution British Library object history exhibition history credit line accession number Add MS 42131 f 3r British Library image http //www bl uk/manuscripts/FullDisplay aspx index 0 ref Add_MS_42131 Add MS 18850 PD-old PD-US Bedford Psalter and Hours 1414-1422 - BL Add MS 42131 Calendars |