"Republished 1968 by arrangement with Doubleday & Co., Inc."--T.p. verso.
"Based on the translation made in 1669 ... [by] Laurence Echard (1670-1730)"--P. x-xi.
The copyright notice says that the date of this impression is 1968 but Ungar confirmed that it was 1969. Cf. Higginson, F.H. A bibliography of the writings of Robert Graves, 2nd ed.