Ceremonial Flag of Soyuz TMA-18 ISS Expedition 23.
The size of the banner is 39” x 59 “, double faced.

Soyuz TMA-18 was a 2010 Soyuz flight to the International Space Station. TMA-18 was the 105th crewed flight of a Soyuz spacecraft since the first crewed flight in 1967.
Crew Russian cosmonauts Aleksandr Skvortsov, Mikhail Kornienko and NASA astraonut Tracy Caldwell Dyson.