A substantially posthumous publication, prepared by Ayres de Sá from the notes and papers of the second Viscount of Santarém (1791–1856), who, in addition to his diplomatic and political roles amid the turbulent struggle between Marianist and Miguelist factions in Portugal, was the first historian to develop the study of cartography in a methodical manner.
The work is illustrated with 97 plates in the first volume and 40 plates in the second.
Cherry half-shagreen bindings with corners, spines with five raised bands framed by black fillets and showing some rubbing, marbled paper sides, a scratch to the left margin of the upper cover of the first volume, endpapers and pastedowns with gilt effects, top edges gilt, original wrappers preserved with minor marginal tears and repairs, corners bumped, bookplates pasted on the pastedowns, contemporary bindings.
Exiled to Paris with Dom Miguel in 1834, he continued his research there, leading to significant cartographical publications.
Autograph inscription by the Viscount of Santarém, a descendant of the author, to José Joaquim Ascenção on the half-title of the first volume.