18 Poems

UK only, and the census claim is correct: The Sunday Referee / Parton Bookshop, London, 1934 is the true first and Thomas's debut. No American edition of 18 Poems is recorded, and there is no competing British edition or original-language question, so US collectors pursue the London first issue. Precedence operates within the edition rather than between countries: the December 1934 first issue (flat spine, untrimmed fore-edge, no advertisement leaf) has precedence over the February 1936 second issue of the same sheets.