E-block staging entry validated for model fit. Imported from staging batch duell-thimm-e, source entry 598. Normalized as institutional or periodical material during bibliographic review.
Gelli cites the same Appert-printed Donon manual with the year 1813, but the standing local Thimm witness gives 1843. Because the title and imprint line otherwise coincide, the local record keeps 1843 as the more credible date and preserves Gelli's 1813 notice as a conflicting secondary witness rather than a separate work.
Vigeant 1882 confirms the 1843 Appert-printed Donon manual and says it offers varied practical advice to fencing masters rather than theoretical development.