Set of handwritten letters addressed to "L. Breguet, Membre - Lot 86

Set of handwritten letters addressed to "L. Breguet, Membre de l'Institut". The first signed "Antoine d'Abbadie" Abbadia dated 1874: 8re evokes scientific problems (accidents and missing pieces). Antoine d'Abbadie was a member of the Académie des Sciences, one of the five academies that make up the Institut de France. In 1857, he was elected to the geography and navigation section. In connection with his work, he built an astronomical observatory in Hendaye between 1864 and 1879, which he bequeathed to the Institut de France. The second on letterhead "Ministre des Postes et Telepgraphes - Cabinet du Ministre", dated June 25, 1881: "Monsieur, J'ai l'honneur de vous informer que par arrêté en date de ce jour, vous avez été nommé membre du congrès international des électriciens qui s'ouvre à Paris le 15 septembre 1881, dans le palais de l'Elysées. Le Ministre des Postes et des Telegraphes" signed Cochery. The third with letterhead "Ministre des Postes et Telepgraphes - Cabinet du Ministre en date du 3 Sept 1840 signed by L. Breguet.