M-block staging entry validated for model fit. Imported from staging batch duell-thimm-m, source entry 1505.
Restored as the French Muller horse-fencing work family rather than as a later translation witness. Thimm already preserves the first edition in 1816 and the second edition in 1828; Gelli confirms the 1828 line, so the catalogue restores the family chronology accordingly.
Gelli's present page gives a Paris, 1823 second-edition line for Muller's horse-fencing treatise, but the already reconciled local family remains anchored in the stronger 1816 first edition and 1828 second-edition tradition. The 1823 reading is therefore preserved only as a conflicting secondary witness.