1912/81 (approx.), mostly German airmail letter collection with over 100 covers, main focus 1912 to 1935, incl. Graff Zeppelin, Do-X and catapult flight, many special cancellations and other specialities, including Mi.-Nr. IV on airmail card (certificate Sieger BPP), mixed frankings German Reich-Colombia, etc., including small part Bizone airmail folded letters and South America, the condition is partly somewhat defective, but mostly in good overall condition, ex Nagel
