10c Brown (161).
Remarkably wide and even margins, "2" in duplex cancel, sharp impression,
Extremely Fine and choice, with 1990 P.F. certificate
(Image)
15c Yellow Orange (163).
Original gum, h.r., fresh color and sharp impression, tiny corner crease at
bottom left, otherwise Fine (Image)
15c Yellow Orange (163).
Perfectly centered with wide even margins, vibrant color, fancy red New
York Foreign Mail cancel, small corner crease at top right, still
Extremely Fine, with 1986 P.F. certificate
(Image)
30c Gray Black (165).
Perfectly centered with extra wide even margins all around, fine
impression, New York Foreign Mail fancy cancel, Extremely Fine Gem, with
1995 P.F. certificate (Image) 
30c Gray Black (165).
Original gum, lightly hinged, attractive charcoal gray shade, fine
impression on fresh paperEXTREMELY FINE GEM. AN OUTSTANDING ORIGINAL-GUM EXAMPLE OF THE 30-CENT 1873 CONTINENTAL PRINTING. A SUPERB STAMP IN EVERY RESPECT.
Lost among the 1870 National Grilled and Ungrilled Issues, 1875 Continental and 1880 American Bank Note Special Printings, and the 1879 and 1888 American Issues is the 30c 1873 Continental printing. Scott 165 is distinguished from its National counterpart by shade and the shape of the perforations, and from its 1879 American counterpart by paper. Many philatelists -- even intermediate and advanced collectors -- have difficulty classifying Scott 165. When it comes to naming the most elusive Bank Note stamps in choice original-gum condition, the 30c 1873 is often overlooked. However, go to any serious collection and look for this stamp, and most of the time it is missing or represented by something that compromises quality. The 30c 1870 is frequently found filling the space for Scott 165. The 30c Continental is extremely rare in any original-gum condition that approaches this example. Blocks have always been rare -- for example, Caspary did not have one, Lilly had one well-centered block of four and an off-center block of six -- which means that singles could not be harvested from multiples. Our analysis of the rarity of this stamp is confirmed by the $21,000 hammer realization for a superb example in our 2000 Rarities sale. We hope that collectors who still have a tendency to overlook the 30c Continental will be awakened to its rarity in Extremely Fine original-gum condition by our comments and recent realizations.
With 1979 and 2000 P.F. certificates (Image)