Germany, Airmail, 1930, 2m + 4m Vertical Pair, So. America Flight Zeppelin. Tied by purple "Luftschiff, Graf Zeppelin, 91.5.1930" on board cds's on oversized cover with "Goodyear-Zeppelin Corporation" corner card, red German flight cachet handstamp and Lakehurst backstamp; slight cover toning at right, F.-V.F. Scott No. C38+C39  Estimate $300 - 400. $0 (Image)