1942, "commemorative issue on the occasion of of the European Postal service congress. . . ", Fold commemorative leaf with matching Michel no. 830 / 22 special cancellation Vienna 12.10.1942 and e. U. Erich Meerwald, to commemorate the 500. session of the BM Unite Berlin Wilmersdorf 24.4.1943, copy 4, at the bottom minimal creasely and tiny notch otherwise excellent condition, in this kind very rare, RRR!