In Folio (344x215 mm). Pages (2), 520, (45 of index). Title page in red and black with woodcut Caesarian crown; wooden headpieces and initials. Contemporary hard parchment, spine with four raised bands and handwritten title. Good copy showing uniform internal oxidation. Rare treatise, a text considered the cornerstone of trade theory where the concepts of international law and economic and mercantile evolution are explained. Good copy showing typical reddening of the period due to the paper used. Small defects such as: minimal tear in the lower corner of one page and anciently restored woodworm hole in the eastern margin of one page.