Ptolemy, active 2nd centuryMercator, Gerhard, 1512-15941 map : hand colored; 25 x 37 cmScale approximately 1:1:250,000 ; Relief shown pictorially ; Based on Ptolemy's geography9942483014202441ark:/81985/n2js9k81sPublicAppendix tab. III. Africæ, Ægyptum inferiorem exhibens : meridiani equidistant pro ratione paralleli 30 1/2MapsEgyptcirca 1620Northwestern University