1912 Five Colour National Flag, 1c blue imperf. Die proof on soft paper, no gum as issued. Fresh on both sides. Photo (Image1)

Est. HK$4,000-5,000

1912 Five Colour National Flag, 1c blue imperf. Die proof on soft paper, no gum as issued. Minor toning at right edge. Photo (Image1)

Est. HK$4,000-5,000

1912 Overprinted 'PROVISIONAL NEUTRAILTY' on CIP Coiling Dragon 3c with left gutter sheet margin, in the sheet margin there is a vertical printing line running across, plus an overprinted 'ROC' on 3c block of 4 green, also with the right gutter sheet margin showing the exact same line matching the same position of the 'PROVSIONAL NEUTRAILTY' stamps. Both mint and very fresh on both fresh. With Peter Holcombe cert. 1992. Photo (Image1)

Est. HK$2,500-3,000

1912 Overprinted 'PROVISIONAL NEUTRAILTY' on CIP Coiling Dragon 16c, mint and a few toned spots. Chan PN8. Photo (Image1)

Est. HK$2,000-3,000

1912 Statistical Department overprinted 'ROC' on Coiling Dragon 1/2 complete panel of 40, without margins, unmounted and very fresh. Danny C. Ko collection, 柯治軍 藏品. Chan 152. Photo (Image1)

Est. HK$2,500-3,000

1912 Statistical Department overprinted 'ROC' on Coiling Dragon 1c ochre vertical pair, top stamp overprint omitted variety, and the bottom stamp overprint mis-print, diagonal instead of vertical, mint and small part of original gum, rare combination of varieties on a pair. Chan 153g, 153var. Photo (Image1)

Est. HK$1,500-2,000

1912 A study of the local overprinted 'ROC' in red char. On CIP Coiling Dragon x 9, mounted on page with descriptions in English and each stamp with Chan catalogue reference, 4 used and 5 mint. Photo (Image1)

Est. HK$800-1,000

1912 Statistical Department overprinted 'ROC' on Jumping Carp 30c with imperforate bottom interpanneau margin variety, mint and dry gum, not listed in Chan catalogue. Rare. Chan 162var. Photo (Image1)

Est. HK$4,000-5,000

1912 Waterlow and Sons overprinted 'ROC' on Coiling Dragon 1/2c chocolate, with horizontal paper folded variety, used. Chan 169a var. Photo (Image1)

Est. HK$800-1,000

1912 A small range of varieties of the Statistical Department overprinted 'ROC' on Coiling Dragon and Flying Geese x 13, including Coiling Dragon 1/2c. 1c. 2c ,3c and Flying Geese $2 overprint inverted variety, 3 mint and others very fine used, viewing recommended. Chan 152c, 153f, 154var, 155b, 165b. Photo (Image1)

Est. HK$2,500-3,000

1912 Revolution 3c blue green, with vertical paper fold in the center. Used. Chan 186var. Photo (Image1)

Est. HK$800-1,000

1912 Republic 20c maroon, perf. shifted downwards variety, mint and very lightly hinged. Chan 203var. Photo (Image1)

Est. HK$800-1,000

1913 London print Junk, 3c horizontal pair imperforate between variety, mint full original gum lightly hinged. Chan 210b. Photo (Image1)

Est. HK$1,000-1,200

1913 London print Junk, 50c green Reaper, block of 10 imperforate, this is considered to be a fake proof. Photo (Image1)

Est. HK$3,000-4,000

1913 London print Junk, 50c Reaper, horizontal pair imperf. between variety, fine used. Photo (Image1)

Est. HK$10,000-12,000

1913 London print Junk, 5c horizontal pair left stamp with right side imperforate variety, mint full original gum lightly hinged. Chan 210b. Photo (Image1)

Est. HK$1,000-1,200

1914 First Peking print Junk 1st print, Hall of Classics $20, unmounted mint full original gum. Rare in this condition. Chan 248. Photo (Image1)

Est. HK$25,000-30,000

1923 Peking 2nd print, Hall of Classics $20 block 4, tied by bilingual 'SWATOW/25.8.23' cds, fine used. Chan 272. Photo (Image1)

Est. HK$3,000-3,500

1931 SYS London 3rd print, $1 lilac, imperforate block of 50, mint full original gum, with light vertical crease line on the 4th column, very fresh on both sides, with a 'FILE' violet frame chop at the bottom. Rare. Chan 825var. Photo (Image1)

Est. HK$13,000-15,000

1931 SYS London 3rd print, $2 green, imperforate block of 50, mint full original gum, with light vertical crease line on the 4th column, very fresh on both sides, with a 'FILE' violet frame chop at the bottom. Rare. Chan 826var. Photo (Image1)

Est. HK$13,000-15,000

1932 The Northwest Scientific Expedition 1c to 10c complete set of 4 x 2, both mint original gum lightly hinged, one 5c surface colour faded. Chan 329-332. Danny C. Ko collection, 柯治軍 藏品. Photo (Image1)

Est. HK$1,200-1,500

1932 The Northwest Scientific Expedition 1c to 10c complete used set of 4 x 2, tied by bilingual 'HANKOW' and 'TSINAN' cds. Rare cancellations on this issue. Chan 329-332. Danny C. Ko collection, 柯治軍 藏品. Photo (Image1)

Est. HK$1,200-1,500

1939 HK print Martyrs no watermark, 2c block of 6 with bottom perf, all with horizontal pair imperf. between variety, mint and no gum. Chan 436a. Photo (Image1)

Est. HK$800-1,000

1939 Martyrs HK print with watermark, 30c brown violet vertical pair imperf. between variety, mint and gum disturbed. Chan 477b. Photo (Image1)

Est. HK$800-1,000

1940 Surcharged 3c on SYS Dah Tung print 5c block of 4, Kiangsi surcharge top left stamp overprinted char 'Fun' instead of 'Tso' variety, used. Chan 491h. Photo (Image1)

Est. HK$800-1,000