50 C. Postal stamp \"Merkur head\" dark green blue, horizontal pair from upper right corner with hand stamp overprint \"fortress Lorient\" by of the right stamp with variety \"double overprint\" - this goes a little on the left stamp over, mint never hinged, faultless condition, issued only 1.600 examples - the pair in existing variety places a rarity dar, expertized Calves and expertise Lothar Herbst VP (2023) \"the condition is perfect. \", Michel 1.450.-+plus