London: Macmillan and Co. Ltd, 1916. First edition, 8vo., pp.xi,372, red cloth, gilt, b/w plates, maps and plans; bookshop sticker to front paste-down endpaper, else very good, in price-clipped dust-jacket, which is sunned to spine, with rubbing, creasing and slight chipping to extremities, good+, and now in a protective cover.

Sunderland: Privately published, and printed by Henry Mitchell, 1889. 8vo., pp.505,36 (Index), half claret morocco, gilt, brown cloth boards, b/w plates; ink ownership autograph to front free endpaper, light foxing to endpapers, edges and prelims, loss to lower corner of rear free endpaper, light marking to cloth, rubbing to extremities, internally clean, overall a very good copy.

Woodbridge: The Boydell Press, 2009. 8vo.,pp. 210, green hardcover, gilt lettering, b/w illustrations and map; a near-fine copy, in a near-fine unclipped pictorial dust-jacket.

York: York Medieval Press. 8vo., pp.viii,153, black hardcover, lettered in silver and with printed paper label to front board, 14 b/w illustrations; a fresh and near-fine copy.

Dublin: Irish Manuscripts Commission, 2014. Five volumes, 8vo., pp.lxxxii,483; lxii,742;lxii,567;lxi,552;lxii,596, red cloth, gilt, b/w frontispiece; mild pencilling to Introduction (Volume I), else a fine set, in near-fine unclipped dust-jackets.

Cambridge: Cambridge University Press, 2010. 8vo., pp.xii,297, paperback; lightly rubbed, a very good copy.

London: Oxford University Press, 1961. 8vo., pp. 262, hardcover, gilt; ownership inscription to front free endpaper, foxing to edges not affecting contents, internally clean, light rubbing to spine and extremities, gilt faded, a couple of spots and a few very light surface scratches to boards, overall a very good copy, no dust-jacket.

York: University of York, 1997. 8vo., pp. 27, pamphlet, pictorial paper wrappers; very slightly rubbed, a near-fine copy.

Cambridge: Cambridge University Press, 2004. 8vo.,pp. xxi,342, pictorial hardcover, b/w maps and frontispiece; red ink stamped ‘damaged’ to publication page, a very good copy. No dust-jacket.

London/New York: Routledge, 1997. 8vo., pp. ix,282, paperback; fresh and clean, a very good copy indeed.

London: Leicester University Press, 1994. 8vo., pp.xvii,341, black hardcover, gilt, b/w illustrations; neat ownership inscription to front free endpaper, else very good indeed, in vg+ unclipped dust-jacket.

The Athlone Press, University of London, 1971. 8vo., pp.xvi,335, raspberry cloth, gilt, b/w frontispiece; slight rubbing to extremities, a very good copy, in a good price-clipped dust-jacket, which is rubbed and chipped to extremities and front upper margin, with sunning to spine, and is now in a protective cover.

New York: Alfred A Knopf, 1986. First edition, 8vo.,pp. xii,410, hardcover, with cream cloth spine and gilt lettering, b/w illustrations, b/w frontispiece, family tree to endpapers; light toning to edges of boards and edges of text block, a very good copy, in a very good unclipped pictorial dust-jacket, which is lightly rubbed and toned to extremities.

Leiden: E.J. Brill. 8vo., pp.xxiv,428,(iii), red cloth, gilt; a fresh and near-fine copy, in vg unclipped dust-jacket.

Cambridge, Mass: Harvard University Press, 2004. 8vo., pp.ix,262, grey cloth lettered in silver; a fine, fresh copy, in vg unclipped dust-jacket with partial sunning.

University of California Press, 1991. Reprint, 8vo., pp.xxi,282, red cloth, gilt, b/w illustrations; vg+ in vg unclipped dust-jacket with sunning to spine.

Cambridge University Press. 8vo., pp.xi,222, black hardcover, gilt; light bump to upper edge of front board, occasional pencil-marking to margins, else fresh and very good indeed, in vg unclipped dust-jacket.

Woodbridge: Boydell, 2011. 8vo., pp.xvii,230, hardcover, b/w plates, maps and figures and tables; pencil scoring to a few pages, extensive pencil notes to rear endpapers, otherwise a very good copy indeed. No dust-jacket, as issued.

London: Academic Press, 1978. 8vo., pp.xviii,324, brown faux leather, orange lettering, b/w frontispiece and illustrations; ink ownership inscription to front free endpaper, otherwise internally clean, a few light marks to boards, a very good copy in a good+ unclipped dust-jacket, which is rubbed and lightly chipped to extremities, with light sunning to spine.

Abingdon: Routledge, 2008. 8vo.,pp. xxvii,373, pictorial wrappers; slight scuffed crease along front of wrapper, otherwise clean and a very good copy.