China 2002 Shenzhou 4 (神舟四号)

Shenzhou 4 (神舟四号), launched on Dec 29, 2002, was the fourth unmanned launch of the Shenzhou spacecraft. This spaceflight cover was issued to commemorate the successful launch, authographed by the 6 Chinese astronauts selected for the human spaceflight Shenzhou 6.

Signatures: Liu Boming(刘伯明), Zhai Zhigang(翟志剛), Nie Haisheng(聂海胜), Jing Haipeng(景海鵬), Wu Jie(吴杰), Fei Junlong(费俊龙).