NMLP P-037586 · True-first precedence · minted 2026-07-19
The Valley of Fear
Arthur Conan Doyle · George H. Doran (New York) · 1915
The US-first Holmes novel: the Doran New York edition (27 February 1915) precedes the Smith, Elder London edition (3 June 1915) by over three months. Both are collected — the Doran as the true first, the Smith, Elder as the first English edition; UK copies are often mislabeled as the true first.
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New Mexico Literacy Project — True-first precedence NMLP P-037586 for "The Valley of Fear" by Arthur Conan Doyle (https://newmexicoliteracyproject.org/id/point/p-037586, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).