Map of the world of Christopher Columbus.Columbus, ChristopherHammer, Heinrich, active 1480-1496, cartographerRosselli, Francesco di Lorenzo, 1445-1513ca. 1489"Opus [fecit?] Henricus Martellus Germanus."Devised devised by cataloger.Map is drawn on "pseudo-cordiform" projection.Mounted on canvas. An engraved border is pasted on canvas around the map.Represents the whole of the Old World (Europe, Africa, Asia).Twelve windheads, with short descriptive legends in scrolls, and conventional cloud symbols surround map; includes two longer legends in panels in bottom corners.cartographic