Cambridge: D.S. Brewer, 2018. 8vo., pp.xii,161, pictorial hardcover, 11 b/w illustrations; a fine copy. (No dust-jacket).

Cambridge University Press. 8vo.,pp. xi,256, hardcover, gilt; a near-fine copy, in a very good unclipped pictorial dust-jacket, with sunning to spine.

Oxford: Oxford University Press, 1965. Second impression, 8vo.,pp. vii,147, navy cloth, gilt; ownership autograph to front free endpaper, light toning to edges, a very good copy, in a good+ unclipped dust-jacket, which is rubbed and toned to spine and extremities, wear and small areas of loss to corners and head and foot of spine, light spotting to margins.

Cambridge: Harvard University Press. First edition, 8vo., pp.viii,182,cloth, gilt; light rubbing to head and tail of spine, o/w a near fine copy in dust-jacket with some tears.

Cambridge: D.S. Brewer. 8vo., pp.ix,186, pictorial hardcover; a fine, fresh copy. (No dust-jacket).

Cambridge: D.S. Brewer, 1997. 8vo., pp.xx,169, brown hardcover, gilt; a fine copy, in near-fine unclipped dust-jacket.

Manchester University Press. 8vo.,pp.21, printed wrappers, b/w illustrations; rubbed and toned to extremities, ownership inscription to front of wrappers, some pages uncut to upper edge, light foxing to title and margins, otherwise very good.

Cardiff: University of Wales Press. Large 8vo., pp.xiv,310, red faux leather, gilt, b/w frontispiece; ownership autograph to front free endpaper, a very good copy, in good+ lightly chipped dust-jacket, which is now in a protective cover.

Toronto: Pontifical Institute of Mediaeval Studies. Offprint edition, author’s presentation copy, 8vo., pp.354-381, original printed wrappers; a few very small ink annotations, o/w a very good copy.