Relief shown by 10-meter contour intervals and hachures. Publisher not identified. Map shows Athens in 1821, the Turkish walls in 1821, Athens and Piraeus in 1870, Greater Athens in 1920, "Greater Athens today." Relief shown in 10 m. contour interval. East Decimal Degree 23.716667. Hand-tinted. North Decimal Degree 38.050000. No publisher. West Decimal Degree 23.597500. South Decimal Degree 37.893611.