1951 (2 Dec.) A cover to Switzerland, via Siberia, bearing (S1) original print complete set of 5, (C11) Lu Xun $400 and (R4) $100, tied by bilingual 'SHANGHAI' cds. Est. HK$1,200-1,500 (Image1)

Est. HK$1,200-1,500

1958 (18 Sept.) An air mail cover from Beijing to Soviet Union, on front bearing (C50) Kuan Han Ching 20f, and on back side with (C50M) Kuan Han Ching miniature sheet, both tied by 'BEIJING' cds, Soviet Union 25.9.58 arrival cds on miniature sheet. Est. HK$10,000-15,000 (Imagea)

Est. HK$10,000-15,000

1961 (19 Dec.) An illustrated cover to Bulgaria, on reverse bearing (C89) Mongolia complete set and (R7) 4f, both tied by 'SHANGHAI' cds. Est. HK$600-600 (Image1)

Est. HK$600-600

1967 (13 June) A Cultural Revolution cover to East Germany, bearing (W3) complete set and (C119) complete set, both tied by 'BEIJING' cds, very fine. Est. HK$7,000-8,000 (Image1)

Est. HK$7,000-8,000

1967 An incoming cover from North Vietnam to Shanghai, plus another cover from Korea to Japan, dated 1948. Est. HK$300-400 (Image1)

Est. HK$300-400

1968 (10 Jan.) A printed 'Guozi Shudian' Cultural Revolution cover to Switzerland, bearing (R13) 5f and (W2) Chairman Mao and Lin Piao 10f, tied by bilingual 'PEKING' cds. Est. HK$1,600-2,000 (Image1)

Est. HK$1,600-2,000

1968 (24 Feb.) A Cultural Revolution air mail from Guangzhou registered to East Germany, on front bearing (R13) 2f, 10f in pair, on reverse bearing (W2) Long Live Chairman Mao complete set of 8, both tied by 'GUANGZHOU' cds, fine. Est. HK$10,000-12,000 (Image1)

Est. HK$10,000-12,000

1976 ( 21 June) An air mail cover to Switzerland, bearing (R15) 2f, 10f and 20f x 2, tied by 'BEIJING' cds. Est. HK$200-300 (Image1)

Est. HK$200-300

1980 (15 Feb.) A printed 'China National Stamp Corporation' from Beijing registered to USA, bearing (T46) The Year of Monkey and (R17) 2f and 60f in pair, tied by 'BEIJING' first day cds. Fine. Est. HK$15,000-20,000 (Image1)

Est. HK$15,000-20,000