The ISS / "Dragon" (CRS 15) flown cover was marked with the all proper ISS board seals dated 03 July 2018, the day when the hatched between the American "Dragon" (CRS 15) unmanned supply spacecraft and the ISS were opened. The cover was autographed by all astronauts who were aboard the station on 03 July 2018: Russian cosmonauts Oleg Artemyev and Sergey Prokopiev, German astronaut Alexander Gerst; American astronauts Serena Maria Auñón-Chancellor, Andrew Feustel and Richard Arnold.

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