Lot no. 10577

International aviation 1937/92, hundreds of covers, besides Airbus aircraft material, test flights, first flights, worldwide souvenir covers, special cancellations, cachets, illustrated covers, airshows, airlines and aviation companies as well as military aviation. Plus Bund registered covers and retourpost as well as four mint sheets Mi.-No. 177, 226, 903 (with shifted perforation) and Berlin 903