NMLP P-037641 · True-first precedence · minted 2026-07-19
The Mask of Dimitrios
Eric Ambler · Hodder & Stoughton (London) · 1939
True first is the UK Hodder & Stoughton edition, London, 1939. The first American edition, retitled A Coffin for Dimitrios (Alfred A. Knopf, New York, 1939, light gray to pale-green cloth stamped in red with red top edge, price present at the jacket flap), is heavily collected in its own right under the US title — but it is not the true first, and the retitling is a classic trap.
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New Mexico Literacy Project — True-first precedence NMLP P-037641 for "The Mask of Dimitrios" by Eric Ambler (https://newmexicoliteracyproject.org/id/point/p-037641, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).