The ISS / “Cygnus” CRS OA-9E flown cover was marked with the all proper ISS board seals dated 24 May 2018, the day when the American “Cygnus” (CRS OA-9E mission) unmanned supply spacecraft docked to the ISS. The cover was autographed by all astronauts who were aboard the station on 24 May 2018: Russian cosmonauts Oleg Artemyev and Anton Shkaplerov; American astronauts Andrew Feustel, Scott Tingle, Richard Arnold; Japanese astronaut Norishige Kanai.

It is necessary to remark that the cover was not carried by the " Cygnus" spacecraft. The cover was delivered to the ISS and then back to Earth by a Russian cosmonaut aboard a Soyuz MS spacecraft.