BÉLIDOR . La Science des ingénieurs dans la conduite des travaux de fortification et d'architecture civile. Paris: Charles-Antoine Jombert, 1739. 6 parts in 1 large volume in-4°, blond ocellated basane, spine ribbed and decorated, red edges (period binding, very worn, major losses especially to the spine). Frontispiece drawn and engraved by Rigault, 53 plates, including 50 folding, finely engraved, vignettes and initials. Apart from a few brown spots, the interior is in good condition and complete. This work is a benchmark in military and civil architecture.