1968, Maos revolutionaries direction in art and literature, with 9 values complete, mint never hinged issue the Michel no. 1011 with perforation fault top right and the Michel no. 1015 with perforation fault top left, otherwise perfect, in addition to it the 5 values the issue "Maos odes" (Michel no. 997, 998, 1001, 1006 and 1007), and the special stamp "Lin Biaos words over Mao" (Michel no. 1009), perfect mint never hinged! Michel catalogue 3030,- Euro