GIA4744274 Portrait of Eratosthene of Cyrene (ca. 284 BC - 194 BC), Greek scientist, geographer and poet. He was director of the Alexandria library and calculated the measurement of the earthly meridian. Portrait of afterwards: ???alleria degli antichi greci e romani?? vol. II. Poschiavo 1784. by Unknown artist, (18th century); Private Collection; (add.info.: Portrait of Eratosthene of Cyrene (ca. 284 BC - 194 BC), Greek scientist, geographer and poet. He was director of the Alexandria library and calculated the measurement of the earthly meridian. Portrait of afterwards: ???alleria degli antichi greci e romani?? vol. II. Poschiavo 1784.); by Giancarlo Costa; out of copyright.