1933 Chicago Flight by Graf Zeppelin, attractive reg’d cover with 1 1/2d & 1sh values tied 22 SP 33, sent via Berlin (large and well-struck connecting flight cachet and bs on reverse), bs at Rio 18 X 33, opened for display, very fine (Sieger 238, € 850) (Image)

1934 (July) Zeppelin 4th South America Flight, pc with 10d total franking tied (16 JY 34 cds) sent via Stuttgart and F’hafen (both 21.7.34 cds) and flown to Recife (24.7.34 bs), connecting flight cachet (code c), very fine and colourful, cert. BPBasel (Sieger 260, € 300) (Image)