5c Blue (179). Original
gum, lightly hinged, perfectly centered with wide and even margins all
around, incredibly rich color on bright white paper, sharp and detailed
impressionEXTREMELY FINE GEM. A SUPERB EXAMPLE OF THE CONTINENTAL 1875 5-CENT TAYLOR. AN EXTREMELY DIFFICULT STAMP TO FIND IN SUCH EXCEPTIONALLY CHOICE ORIGINAL-GUM CONDITION.
The addition of a 5c value was made necessary by the creation of the General Post Union in 1874, which specified a rate of 5c between member countries, effective July 1, 1875. Of the two regular-issue 5c Taylor stamps -- Scott 179 (Continental) and Scott 185 (American) -- the former is much more difficult to obtain in this superb original-gum condition because comparatively few multiples have ever been available to feed the demand for singles.
With 2003 P.F. certificate (Image)
1c Dark Ultramarine (182).
Mint N.H., bright shade, wide margins, fresh and Very Fine, with 1997
P.F. certificate, Scott Retail as hinged
(Image) 
2c Vermilion (183).
Original gum, lightly hinged, perfectly centered with wide margins,
Extremely Fine, with 2002 P.F. certificate
(Image) 
3c Green (184). Original
gum, lightly hinged, rich color, huge margins, small corner crease at
bottom right, otherwise Extremely Fine, with 2002 P.F. certificate (Image) 
6c Pink (186). Original
gum, rich color on bright white paper, Very Fine
(Image) 
6c Pink (186). Original
gum, lightly hinged, fresh paper, Very Fine, with 2002 P.F. certificate (Image) 
10c Brown, Without Secret
Mark (187). Original gum, barely hinged, bright shadeVERY FINE AND CHOICE EXAMPLE OF THE 10-CENT AMERICAN BANK NOTE ISSUE WITHOUT SECRET MARK.
Scott 187, without secret mark, is far rarer in such well-centered, sound condition than its secret mark counterpart, Scott 188.
With 2002 P.F. certificate (Image)
10c Brown, Without Secret
Mark (187). Redistributed part original gum, well-centered with wide
margins, Extremely Fine, an exceedingly scarce stamp in this condition,
with 2000 P.F. certificate (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.
The 10c stamps from the American Bank Note printing (Scott Nos. 187 and 188) are notably scarce with such choice centering.
With 2002 P.F. certificate (Image)
10c Brown, With Secret Mark
(188). Unused (regummed), deep rich color, well-centered on fresh
paper, Extremely Fine, an attractive stamp, with 2002 P.S.E. certificate (Image) 
15c Red Orange (189).
Original gum, barest trace of hinging, vibrant color, almost perfectly
centered, Extremely Fine, with 2002 P.F. certificate
(Image)