G-block staging entry validated for model fit. Imported from staging batch duell-thimm-g, source entry 873.
Gelli gives this Ghersi title with the date 1890, but stronger external and local evidence supports 1830 as the real publication year. Google Books and a modern ABAA rare-book listing both describe the same Traite sur l'art de faire des armes in 1830, so the catalogue keeps 1830 and preserves Gelli's 1890 only as a conflicting secondary witness.