426. BLONDEL SAINT-AUBIN (Guillaume). The true art of sailing through the reduction quarter. Au Havre de Grâce. Faure. 1783, in-8, 172 pp, full vellum, handwritten title on upper cover (contemporary binding). Last edition, revised, corrected and enlarged, illustrated with several diagrams and tables in text. Some pages printed on blue paper. Handwritten inscription dated June 12, 1812 on lower flyleaf. Some foxing. Binding stained.