I-block staging entry validated for model fit. Imported from staging batch duell-thimm-i, source entry 1100. Normalized as institutional or periodical material during bibliographic review. Normalized on 2026-08-08 as the canonical 1858 British cavalry sword, carbine, pistol, and lance exercise manual. Duplicate work 690 was merged into work 2271 so that the fuller London Parker imprint witness is preserved on the canonical record.
The London 1860 and 1865 witnesses are retained as later editions of the 1858 Horse Guards manual.
Quality phase 275: duplicate work-level record consolidated into this canonical work; distinct bibliographic manifestations and unresolved witness differences remain represented at edition level. Former work 2272 merged into work 2271.
The undated 16mo War Office witness formerly held as work 2272 is retained as edition 2281 of this same official manual.