I-block staging entry validated for model fit. Imported from staging batch duell-thimm-i, source entry 1092. Retitled from title with long descriptive subtitle. Reviewed on August 7, 2026 from supplied cover image. The existing Armorum record corresponds to the Madrid 1890 edition printed by Evaristo Sánchez. The cover confirms the author form `Eusebio Yñiguez` and the long subtitle `Recopilación de las leyes que rigen en el duelo, y causas originales de este, tomadas de los mejores tratadistas, con notas del autor`. A separate facsimile edition published in Valencia by Paris-Valencia in 1992 should be modeled as a distinct edition or work-level manifestation if later added.