Danzig, 1932 Danzig Zeppelin Flight, attractive registered card franked with C31-35, tied by Danzig-Langfuhr 31.7.32 cancels, with green Luposta-Danzig 1932 flight cachet and 1.8.32. Friedrichshafen transit; 2.8.32. Berlin receiver on reverse, Very Fine and choice. Michel No. 231-235. Sieger No. 170.B. Scott No. C31-35  Estimate $150 - 200. $0 (Image)