30 Kopecks postal stamp with red one-line hand stamp overprint "Pleskau" from left at the bottom to the right above, single franking on properly franked letter from "PSKOW -9 8.41", there are only a few entire pieces have been preserved, so they are very rare, issued only 100 piece, the not over post-office counter sold were, but rather at companies given were, expertized Dr. Schultz and photo expertize Walter Zirath BPP, Michel 5.000.- - a piece of dream of this rarity!