Mosti ryden by Rybbesdale: the manuscript
London, British Library, Harley MS 2253, f. 66v

 f. 66v (full page) | the poem (enlarged)

The poem is the first block of text on the page; it is laid out as prose, with line-breaks indicated only by diagonal punctuation-marks, and no indication of breaks between stanzas.
For a brief general account of the MS, see the introductory page on the Harley Lyrics; for a facsimile with full description and discussion, see Ker (1965).