1870: BALLON MONTÉ "Ville de Florence" with EXTREMELY RARE MIXED FRANKING between 1862 10c Napoleon III perforated and 1867 10c " Napoleon Lauré" (Yvert 21 + 28) both very fine, tied by STAR cancel and "PARIS 24 SEPT 70" cds alongside on entire letter with beautiful illustrated contents "INSTRUMENT DE PESAGE BESSON" (manufacturer of Weight scale instruments). Arrival backstamp "ALENCON 27 SEP 70". This exceptional cover is illustrated in the 2016 Spink-Maury catalogue. Signed by the expert Roger Calves. (Tax Method: Margin System) (Image)

1871, Printed letter flown by ballon Nr.55 "DUQUESNE (3)" bearing a Ceres 20 C blue tied by Numeral and beneath "PARIS 6 JANV 71" adressed to Gravelle de la Mayenne with b/s arrival. (Tax Method: Margin System) (Image)