Much of the mail from the "MONTGOLFIER" flight was captured by the Germans and received no arrival markings. There were no examples in the "Gaetano Vullo", Schoendorf or Forster Collections and the single example in the great Golden collection was an internal usage. A very rare surviving flight to a rare destination.
France, Semi-Postal's: 1917-19, War Orphans, Set of Eight complete, each tied by MULHOUSE HAUT-RHINE 27-9-20 c.d.s., strikes on largish envelope bearing R Mulhouse 1 registry label, on a reverse, Basil receiver. Attractive. (Scott B3-10 $3,100 for each separate cover)
