NMLP P-040410 · True-first precedence · minted 2026-07-19
Mystery Mile
Margery Allingham · Jarrolds (London) · 1930
UK precedes US and the census claim is confirmed. Jarrolds, London, January 1930 (month per the Margery Allingham Society) is the accepted true first; Doubleday, Doran for The Crime Club, Garden City, N.Y., 1930 is the first American edition and is collected in its own right — name both. One residual: no source consulted gives a month for the US Crime Club issue, so UK precedence rests on the January 1930 UK date against an undated-within-year US issue rather than on two compared months. This is the second Albert Campion book (after The Crime at Black Dudley) and the first in which Campion leads; the title was not changed for the US market.
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New Mexico Literacy Project — True-first precedence NMLP P-040410 for "Mystery Mile" by Margery Allingham (https://newmexicoliteracyproject.org/id/point/p-040410, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).