The Blue and Brown Books. Preliminary Studies for the 'Philosophical Investigations'. Generally known as The Blue and Brown Books.
First edition. 8vo. xiv, [2], 185, [1] pp. Original blue cloth, spine lettered in gilt, dust jacket (heavy offsetting to front free endpaper; jacket unevenly toned with light shelf wear to edges, spine panel chipped at head with small area of dampstain towards the foot, otherwise a very good copy overall). Oxford, Basil Blackwell, 1958.