Polar post, all world, approximate 1980 - 2012, extensive and manifold collection with approximately 1500 covers and cards lots in the box, as well amongst other things lovely frankings from Greenland, Russia, Austr. Antarctica, South America, South Africa, etc., interesting documents airmail, shipãs mail, polar expedition, research ships, Paquebot, numerous cachet cancel, North Star, and so on, time-intensive inspection, high four place acquisition price! ! !, total weight approximate 13 kg.