dated 1978 and numbered 10/40, signed in Pinyin, dated 1981 and numbered 19/50, dated May 1973 and numbered 20/25, signed in Pinyin, dated 1983 and numbered 5/50, signed in Pinyin, dated 1983 and numbered 2/40, This work is number 10 from an edition of 40, This work is number 19 from an edition of 50, This work is number 20 from an edition of 25, This work is number 5 from an edition of 50, This work is number 2 from an edition of 40
