Oxford: The Clarendon Press, 1956-69. 4to. 6 volumes, set. Second edition with both versions of the Supplement. Original green buckram, gilt. Numerous illustrations throughout. Both supplements have their jackets which are tanned on the spines and have a few nicks and tiny chips. Near fine. Item #5016
Originally published in four volumes in 1951, a supplement was added to the second edition of 1956 and that supplement was published as a second edition, completely revised and expanded, in 1969. This set contains all six volumes. Still a useful reference work.