Earth and sky globes - Germany / German Democratic Republic 1972 - 25 Pfennig

Earth and Sky Globes The Ministry of Posts and Telecommunications of the German Democratic Republic publishes six multicolored special postage stamps depicting earth and sky globes from the State Mathematical-Physics Salon in Dresden. Earth and sky globes from the State Mathematical-Physical Salon in Dresden The State Mathematical-Physical Salon - emerged from the Saxon Art Chamber founded in 1560 shows numerous world-famous collections with valuable instruments, scientific tools and craft treasures from history in its exhibition rooms in the Zwinger of the natural sciences. Among them are the unique holdings of earth and sky goblins exhibited in 10 large display cabinets, whose versatile constructions with different figurative statements provide a comprehensive overview of the geographic and astronomical knowledge of past centuries with the possibilities of cartographic representation at that time. The 25 Pfennig mark shows the armillary sphere built by the Gotha master Johann Moeller in 1687, which with its compass base plate is embedded in a hexagonal profiled wooden base with drawer. A gearwheel drive drives the armillary sphere in the meridian ring around its polar axis and at the same time moves the symbols of the moon and the sun on toothed rings within the ecliptic.