France 1870 - "L'Archimède" balloon mail, Armée Française Quartier-Général, Roumet certificate.
Mounted balloon "L'Archimède", Napoleon Laureate 20c blue (Yvert no. 29B) , cancelled cachet French Army Headquarters 20/NOV. /1870 on letter with correspondence to Cloyes (Eure & Loire) . Without arrival cachet - F. Authenticity certificate signed by the expert ROUMET HP. Catalogue value: €2,750. 00 (Yvert 2020) . See the photos for a better estimation.
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Mounted balloon "L'Archimède", Napoleon Laureate 20c blue (Yvert no. 29B) , cancelled cachet French Army Headquarters 20/NOV. /1870 on letter with correspondence to Cloyes (Eure & Loire) . Without arrival cachet - F. Authenticity certificate signed by the expert ROUMET HP. Catalogue value: €2,750. 00 (Yvert 2020) . See the photos for a better estimation.