We believe this item commemorates the totality of the Shenzhou element of China’s manned spaceflight programme.  You’ll need to see the scans for 20307525B,C, and D in addition to this one, which is the cover of a book measuring 9-3/8″ x 12″ x 1/2″.   As far as we can tell, up to the time of printing there had been ten Shenzhou (“Divine Land” in Mandarin) spacecraft.  The small dark thing you see in the middle of the circle is a metal token (coin) made from remains of Long March 2F, a manned orbital rocket.  See 525B,C, and D for more descriptions.    Grade: 1