1929-30 first flight covers (3) - PAA Cristobal - Cartagena pilot signed with cachet, PANAGRA Oct 8th 1929 Cristobal - Buenos Aires with cachet (143 flown) pilot signed F. J. Clark, (scarce signature), PAA first flight by Lindbergh Cristobal - Miami direct 1.5.30 with cachet addressed by co-pilot B. L. Rowe to himself. (Image)