NMLP P-040414 · Point of issue · minted 2026-07-19

Sweet Danger

Margery Allingham · Heinemann (London) · 1933

Under the Heinemann rule in force from the 1920s, a first states "First published [Year]" or "First published in Great Britain [Year]" on the copyright page with later impressions noted beneath it; there is no number line (Heinemann did not use them until the 1980s), so the absence of any "reprinted"/"second impression" line under the first-published statement is the test

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New Mexico Literacy Project — Point of issue NMLP P-040414 for "Sweet Danger" by Margery Allingham (https://newmexicoliteracyproject.org/id/point/p-040414, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).