With an Introduction and Notes by W.W. Merry, 4th Edition, two parts in one volume : Part 1, Introduction and Greek Text, 91 pp, Part 2, Notes and Index of Greek words, 91 pp, red cloth, no d/w, extremities a trifle rubbed, otherwise in very good condition, Oxford University Press 1961
16.5 x 11 cm, 210g, no ISBN
Reprinted in 2009 by BiblioBazaar in the USA and available at £18.99, though I believe their books are all perfect-bound (i.e. like a paperback). This edition is much more usable, as it will open flat.