"Nona Asiae Tabula" and "Decima Asiae Tabula" and "Duodecima Asiae Tabula," from one of the earliest editions of Ptolemy's 'Cosmographia', published by Arnold Buckinck (successor of Conrad Sweynheym), Rome, 1478; Columbus used maps from this edition in preparing for his voyages. CLICK ON EITHER HALF OF THE MAPS FOR A LARGE SCAN.