1882/96: 2 c. bright rose and 5 c. blue, wmk. Crown CA, fresh mint examples each handstamped "Specimen" diagonally in black. Fine and scarce, large part og.
1884 (Oct 14): Registered cover endorsed "per S.S. City of Rio de Janeiro" mailed to Halifax, Canada franked by unusual combination of 1882 10 c. mauve and 1884 10 c. green each cancelled by "B62" obliterator, with circular "R" at left and "Hong Kong" despatch alongside. Reverse with seal cut out and Boston and Halifax markings (Nov 18 and Nov 19). An unusual franking. Cert. E. Diena (1977).
Note: The UPU 10 cent rate was valid from February 18, 1880 until Jan 1, 1891.
1891: De La Rue surcharge, 20 c. on 30 c. yellowish green mint (Gi = £ 170), 50 c. on 48 c. dull purple optd. "Specimen" in black, large part og. with minor adhesion to gum but of excellent colour, scarce.
1891: Surcharged in English and Chinese, 20 c. on 30 c. grey-green, 50 c. on 48 c. dull purple, $ 1 on 96 c. purple on red mint, the 20 c. without gum and minor thin, the 50 c. superb mint with large part og. and excellent colour, the $ 1 with natural gum cracking and part og. Rare set Gi = £ 570.
1885: $ 1 on 96 c. black, a fine mint example optd. "Specimen" in black, of excellent colour and freshness, slight adherence on gum, large part og. A rare stamp Gi = £ 600.
1903: Wmk. Crown CA, the superb mint complete set of fifteen, 1 c. - 50 c. fresh mint, $ 1 - $ 10 with "Specimen" overprint in black, fresh and fine, large part og Rare Gi = £ 2'500 as normals, £ 1'800 as specimen.
1907/11: Colour changes, the complete set of eight values optd. "Specimen" in black, 6 c. with slight rubbing otherwise a fine and scarce set, large part og Gi = £ 1'000.
1912/21: "Specimen" set of eighteen stamps (missing both 25 c. values), complete including 1 c. through to 20 c., 30 c., 50 c. with four examples incl. white back and emerald back (Gi = £ 350), £ 1, $ 2, $ 3, $ 5 with additional white back variety (Gi = £ 400) and $ 10, fresh and fine, large part og.
1997: History of the Hong Kong Post Office, the pair of Miniature Sheets, un-cut vertical pair se-tenant and imperforate between, fresh and fine, unmounted og. Rare and unlisted variety.
2000 (Jan1): New Millenium, the $ 1.30 c. and $ 2.50 c., the two values in blocks of four with variety horizontal interpanneau margin between the two blocks, creased along margins, otherwise fresh and fine, unmounted og. Unusual and rare.
2001 (Jan 1): Year of the Snake Miniature Sheet, the imperforate $ 5 miniature sheet se-tenant with perforated Miniature Sheet featuring the four values of the set, the perforated sheet diagonally overprinted "Specimen" in gold. Rare and fine, unmounted og.
2000 (Jan 31): $ 10 Tsing Ma Bridge, the un-cut imperforate between vertical pair of Miniature Sheets, fresh and fine unmounted og. Rare and unlisted variety.
1897/1902: Postal Fiscal $ 2 dull bluish green and $ 3 dull mauve, fresh and fine mint examples, each optd. "Specimen" in black, small adhesions on gum but of fresh colour, large part og . Rare Gi = £ 450.