Anecdota Oxoniensia, edited by J.L.G. Mowat.

Anecdota Oxoniensa: Texts, Documents, and Extracts chiefly from Manuscripts in the Bodleian and other Oxford Libraries. Mediaeval and Modern Series. Vol. I - Parts [I & II]. Sinoma Bartholomei [&] Alphita. Edited by J.L.G. Mowat. 2 parts, small 4to, 48p & 243p,, Oxford: At the Clarendon Press, 1882 & 1887.
Both with grey printed wrappers, just a little chipped. Very good copies indeed.