North Korea. (★). 2 complete and one lage part of sheets of stamps 1980's on toned unsurfaced thin greyish paper without gum. Not listed in Michel, but in Scott, valued to 5-10 $ a piece. Theese stamps was only for use inland, very hard to find. Mi no 2668 x 72, 2861 x 55 and 2863 x 43. Minor damages. aprox. 1500 $