50 Pfennig Germania with overprint "Memelgebiet", dark purple / black on orange-white, mint, in a horizontal pair at the lower margin with overprint HAN 4073. 20, flawless condition, signed by Dr. Petersen BPP and Klein BPP, photo certificate by Tobias Huylmans (2021) "genuine and flawless", Michel 1. 000.- +