4. South America flight 1934, card from Bengasi 17.7. To Recife with among others 2 and 5 L airmail in colourful Michel F, transit Friedrichshafen 21.7. And flight stamp \"b\" on face, arrival Recife 25.7, 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 b, 1.600 Euro)