Slovakia #13-23 mint never hinged, complete 1940-41 postage due set. Scott Catalog value for never hinged is $ 37.50. After the German invasion of Czechoslovakia, Slovakia became nominally independent, but under "German Protection." Here's the second of 3 postage due sets issued by the wartime Slovakian state. Fresh mint never hinged stamps. Buy now at $ 13.95 or make offer. Postage discounted for purchase of multiple lots.
eBay