X X 20 20 Pf. flight 1930 / 31 and vertical pair 20 Pfg flight reverse on Zeppelin-GA card 8 Pf. presidents (P 191) and additional franking two times 8 Pf. presidents, baltic sea year-excursion 1931 handing in for transport FRIEDRICHSHAFEN 12.5.31, Sieger no. 168 Aa