Germany, 1932, 4m So. America Flight Zeppelin, attractive airmail bordered cover with DOX America-Europe imprint, franked with 4m South America Flight adhesive & pair 1m black & salmon, postmarked "Dornier Flugschiff / DOX 19 MA 32" and accompanying purple flight cachet, Berlin receiver on reverse, Very Fine. Michel No. 439. Scott No. C39  Estimate $100 - 150. $0 (Image)