First edition in English, first impression, of a major work in the philosophy of science. For the translation, Popper extensively rewrote the text, with new footnotes and 150 pages of new appendices. The work was first published in German in 1934; the English translation was published in the UK in January 1959, preceding the US edition in March.
Octavo. Original grey cloth, spine lettered in gilt on red ground, light grey endpapers, top edge red. With dust jacket.
Tables, diagrams, and manuscript facsimiles in the text.
Unclipped jacket with hint of sunning to spine and a couple of tiny nicks: a fine copy in near-fine jacket.