1931 Arctic Expedition Zeppelin Postcards:  the set (Michel 204Ab, 205Aa), imperf Zeppelins (C26-C29), 30k & 1r   35k & 2r on  2 Reg. cards  flown from the Malyguin to Friedrichshafen, on June 18, 1931. with 12 arrival 31 June 1931 cds on front. Michel €260 ($280).