H-block staging entry validated for model fit. Imported from staging batch duell-thimm-h, source entry 1002. Normalized on 2026-08-08 as the canonical 1887 Hesse handboek on degen and sabel. Duplicate work 3411 was merged into work 1276 so that the Apeldoorn Laurens Hansma edition witness and fuller bibliographic note are preserved together.