25 C. Merkur head in the block of four with each vertical overprint "Occupied area North France" in type I over vertical pair, properly franking on cover with cancellation "Dunkerque 2.8.1940" to Bergues with arrival postmark from 03.8.1940, expertise Lothar Herbst VP (2025) "the condition is perfect. The stamps are only in very small edition from 800 pairs issued become. There only a part of it have been preserved is, are these stamps very rare. ", Michel 1.700.-