Ptolemy, active 2nd centuryMercator, Gerhard, 1512-1594Bertius, Petrus, 1565-16291 map; 25 x 37 cmScale approximately 1:1,260,000 ; Title across top: Appendix III. Tabulae Afr: ; Based on Ptolemy's Geography ; Map covers Nile River Delta ; Leiden : Petrus Bertius9941566614202441ark:/81985/n28s4mq43Petrus BertiusPublicMeridiani equidistant pro ratione 56, paralleli 30 1/2MapsEgypt--Nile River Delta1618Northwestern University