NMLP P-022867 · True-first precedence · minted 2026-07-04

When in Rome

Ngaio Marsh · Collins · 1970

The UK Collins Crime Club 1970 printing is the true first, preceding the US Little, Brown edition of 1971. Confirm the Collins Crime Club imprint and the single 1970 copyright date to identify the true first.

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New Mexico Literacy Project — True-first precedence NMLP P-022867 for "When in Rome" by Ngaio Marsh (https://newmexicoliteracyproject.org/id/point/p-022867, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).