1,50 Karbowanez medium ochre-brown on thick vertically striped paper, type I, "double overprint" variety, unused without gum as issued, minimally thinned in stamp centre, issue-typical perforations, major rarity of the area, signed Bulat and others, photo certificate Gerhard Krischke BPP "...only 7 examples known to date.", Mi. 4.500.-