NMLP P-037647 · True-first precedence · minted 2026-07-19
The IPCRESS File
Len Deighton · Hodder & Stoughton (London) · 1962
True first is the UK Hodder & Stoughton edition, London, 1962 (Deighton's debut). The first American edition followed from Simon & Schuster, New York, 1963. Both are collected; the Hodder edition holds clear precedence.
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New Mexico Literacy Project — True-first precedence NMLP P-037647 for "The IPCRESS File" by Len Deighton (https://newmexicoliteracyproject.org/id/point/p-037647, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).