4. South America flight 1934, registered card from Tripoli 16.7. To Recife with among others 5 L. Airmail in colourful Michel F, transit Friedrichshafen 21.7. And flight stamp \"c\" on face, further transits and arrival Recife 25.7. Reverse, by Longhi not listed incoming line, first in the supplements this a document registered and depicted, superb, signed and photo expertize Longhi \". Raro aerogramma, l\'unico ad oggi\" (Longhi 878 a, 1.600 Euro)