5c Blue (185). Original
gum, lightly hinged, choice centering, bright color, Extremely Fine, with
2002 P.F. certificate (Image) 
5c Blue (185). Original
gum, deep shade, fresh and Fine (Image)
5c Blue (185). Block of
four, unused (no gum), deep color, bottom left corner perf tip fault,
otherwise Fine, Scott Retail as singles
(Image) 
6c Pink (186). Original
gum, lightly hinged, fresh and bright color, very well-centered with wide
marginsEXTREMELY FINE GEM. A SUPERB STAMP IN POST-OFFICE FRESH CONDITION.
Ex Golin. With 1995 P.F. certificate (Image)
6c Pink (186). Original
gum, lightly hinged, Very Fine, with photocopy of 1988 P.F. certificate for
block of four, this being the bottom right stamp
(Image)
6c Pink (186). Original
gum, lightly hinged, reperfed at left, small corner crease at bottom right,
otherwise Very Fine (Image)
10c Brown, Without Secret
Mark (187). Unused (no gum), rich color, tiny faults invisible on face,
appears Fine (Image) 
10c Brown, With Secret Mark
(188). Original gum, lightly hinged, beautifully centered, rich
colorEXTREMELY FINE. AN OUTSTANDING ORIGINAL-GUM EXAMPLE OF THE 10-CENT AMERICAN BANK NOTE PRINTING WITH SECRET MARK IN EXCEPTIONAL CONDITION.
The 10c stamps from the American Bank Note printing (Scott Nos. 187 and 188) are notably scarce with such choice centering. The example offered here, with wide margins on all four sides, is a true condition rarity.
With 2002 P.F. certificate (Image)
10c Brown, With Secret Mark
(188). Original gum, lightly hinged, rich color and proof-like
impression on bright white paper, precise centering, rounded top left
corner perf harshly described by the P.F. as pulled, otherwise Extremely
Fine, with 2002 P.F. certificate (Image) 
10c Brown, With Secret Mark
(188). Unused (regummed) over small thin spot, rich color and
proof-like impression, small tear at right, Extremely Fine appearance (Image) 
10c Brown, With Secret Mark
(188). Unused (no gum), sharp impression on fresh paper, Fine (Image)