Space mail flown cover regarded to "Cygnus NG-10” mission. Theenvelope was aboard of the International Space station in 2018.This Cygnus spacecraft was named the S.S. John Young. He was theonly person to fly twice on each of three NASA programs which included Gemini, Apollo and the Space Shuttle.On board the International Space Station, the cover was marked with the“ISS” octagonal board seal, the “Russian Post. ISS. RussianSegment” round board post mark and the “RussianSegm...ent of International Space Station” board souvenir seal both dated November19, 2018, the day when the US “Cygnus NG-10”, previously known as “CygnusCRS OA-10E”, unmanned supply spacecraft docked to the ISS. The date 18 November2018 in the “Russian Segment of International Space Station”board souvenir seal was set by mistake.The cover was autographed by all 3 cosmonauts/astronauts who were aboardthe station on 19 November 2018: American astronaut Serena Maria Auñón-Chancellor, Russiancosmonaut Sergey Prokopiev and German astronaut Alexander Gerst.It is necessary to remark that the cover was not carried by the"Cygnus" spacecraft. The cover was delivered to the ISS and then backto Earth by a Russian cosmonaut aboard a Soyuz MS spacecraft.An excellent item for recording in the collection the "Cygnus NG-10”mission.A superb item for the “Space mail mistakes” collection.size C6 (11, 4 × 16, 2 cm)International shipping from Moscow, Russia to USA, Canada, Europe, Asiausually takes 15 - 25 days. Please, be patient. The buyers will be informedabout tracking number of the registered pack.Payment via PayPal.