1969-F 5 Mk Mercator J-400, CAM PR68CAM 认证号27129329, PCGS号388859

Germany-Federal Republic | KM# 126.1 | J-400 | Commemorating the 375th obit of Gerhard Mercator. Gerardus Mercator (5 March 1512 – 2 December 1594)[4] was a 16th-century geographer, cosmographer and cartographer from the County of Flanders. He is most renowned for creating the 1569 world map based on a new projection which represented sailing courses of constant bearing (rhumb lines) as straight lines—an innovation that is still employed in nautical charts.