ALMANACH IMPÉRIAL POUR L'AN M. DCCC. VI, présenté à s. m. l'Empereur et roi, Par Testu. Paris : Testu, [1806]. -In-8, 220 x 135 : 846 pp, (1 f.). Red morocco, gilt roulettes framing the boards, gilt AMJS numeral in the center, within a gilt shield surmounted by an imperial eagle haloed by stars and supporting a cross of the Legion of Honor, smooth spine decorated with crowned eagles, inner gilt roulette, blue silk lining and endpapers, gilt edges (period binding). Official almanac of the Empire for 1806. This is the first time Napoleon is presented in the dual capacity of "Emperor and King". A copy on strong wove paper, from the library of Antoine-Jean-Mathieu Séguier (1768-1848), with his cipher on the boards, maître des requêtes, first president of the Paris Court of Appeal, appointed baron d'Empire in 1808 and pair de France in 1815. Spine faded. Some rubbing from use, a small epidermis on the second cover. Provenance: Antoine-Jean-Mathieu Séguier, with his gilt figure on the boards.