Ptolemy, active 2nd centuryMercator, Gerhard, 1512-1594Bertius, Petrus, 1565-16291 map; 34 x 47 cmScale approximately 1:4,500,000 ; Title across top: Afr: III Tab: ; Based on Ptolemy's Geography ; Relief shown pictorially ; Map covers northern Egypt ; Leiden : Petrus Bertius9941566574202441ark:/81985/n2183635tPetrus BertiusPublicMedius meridianus 56, reliqui inclinantur ad hunc ratione 25 & 30 parallelorumMapsEgypt1618Northwestern University