GESSI, Berlingiero. La Spade di Honore Libro Primo. Bologna: Heirs of Domenico Barbieri, 1671. 4° (226 x 167mm.). Half-title, engraved frontispiece by L. Tintus after Domenico Canati, final leaf with woodcut printer's device, engraved portrait of the author by Tintus after J. Rigus, 10 engraved emblematic plates, woodcut head- and tailpieces. (Occasional light spotting.) Contemporary limp vellum. Provenance: Ippolito Magnocalalli (inscription). FIRST EDITION of this work on the duties of a cavalier; a second part was issued in 1675 under the title Lo Scettro Pacifico. -- Flavius VEGETIUS RENATUS. De re militari libri quatuor... Sexti Iulii Frontini Strategematôn libri quatuor: Ælianus de instruendis aciebus: Modestus de vocabulis rei militaris. Edited by G. Stewechio. Leiden: Plantin, 1952. 8° (168 x 115mm.). Title with woodcut printer's device, folding letterpress table, woodcut illustrations. (Some old dampstaining and spotting.) Contemporary vellum (ties lacking, upper inner joint split). Provenance: Johannes Bayer (signature, dated 1596); Dominican Convent (armorial bookplate); Munich Royal Library duplicate (ownership stamps). Second edition of Stewechio's collection. -- Girolamo RUSCELLI. Precetti della militia moderna, tanto per mare, quanto per terra. Venice: Heirs of Marchiò Sessa, 1572. 4° (197 x 140mm.). Title with woodcut printer's device, woodcut illustrations, diagrams and initials. (Some browning.) Later vellum. Provenance: Gennaro Giannelli (signature). Adams R-956. -- Sextus Julius FRONTINUS. Libri Quatuor Strategematicon. Edited by F. Oudendorpio. Leiden: S. and J. Luchtmans, 1779. 8° (207 x 125mm.). Engraved frontispiece (some browning). Contemporary vellum gilt, large central block symbolising The Hague. (4)