3. South America flight 1933, droped Barcelona, letter from Asmara 31.5. With 1 and 2 L. Landscapes in colourful Michel F to Barcelona, transit Friedrichshafen 1.7, destination transit cancel and flight stamp on face, further transits and arrival Barcelona 3.7. Reverse, very rare, by Longhi from the correspondence from Bavarian only 10 documents registered, this with of the number \"1 / 10\", superb, detailed photo expertize leather (Longhi 757, 4.500 Euro)