In according to the agreement between Russian Space Agency and ESA (European Space Agency), the Russian members of Expedition 17, cosmonauts Sergey Volkov and Oleg Kononenko marked 25 ATV covers with the ISS octagonal board seal and autographed them. There were the covers numbered from 0001 till 0025. More information about the ATV flown covers see at http://www.astrophil.ucoz.ru/news/atv_flown_covers/2009-09-24-52
