4c Columbian, Error of Color
(233a). Original gum, lightly hinged, deep rich color in the more
intense of the two error shades, detailed proof-like impression, fresh and
bright paperVERY FINE AND CHOICE. A BEAUTIFUL EXAMPLE OF THE RARE 4-CENT COLUMBIAN ERROR OF COLOR.
The 4c Columbian color error was caused by the use of a wrong batch of ink, and spectrographic analysis has shown that the blue inks of the 4c error and 1c Columbian have the same components.
Stamps from at least two panes reached collectors, and the few cancelled examples indicate that stamps used by the public came from other panes. It is likely that a number of full sheets were printed using the wrong ink, and most of the stamps have simply been lost to philately.
With 1999 P.F. certificate. (Image)
6c Columbian (235). Bottom
imprint, plate no. 104 and letter "Z" block of eight, original gum, three
stamps Mint N.H., others lightly hinged, perfectly centered throughout, few
perf separations sensibly reinforced, top right stamp tiny corner crease,
otherwise Extremely Fine, a remarkably well-centered plate block (Image)
8c Columbian (236). Mint
N.H. bottom imprint, plate no. 131 and letter "I I" block of eight, deep
rich color and proof-like impression, Very Fine and choice, a beautiful
plate block in a remarkable state of preservation, with 1972 P.F.
certificate (Image) 
50c Columbian (240).
Bottom imprint, plate no. 77 and letter "S" strip of four, original gum,
left stamp Mint N.H., others lightly hinged, deep rich color and
proof-like impressionVERY FINE AND CHOICE. A BEAUTIFUL IMPRINT AND PLATE NUMBER STRIP OF FOUR OF THE 50-CENT COLUMBIAN ISSUE.
Scott Retail does not take the Mint N.H. stamp into account. Signed in pencil in selvage at bottom left. (Image)
$1.00 Columbian (241). Mint
N.H., choice centering, beautiful bright color on post-office fresh
paperEXTREMELY FINE. A BEAUTIFUL MINT NEVER-HINGED EXAMPLE OF THE $1.00 COLUMBIAN.
With photocopy of 2002 P.F. certificate for left margin block of four, this being the bottom right stamp (Image)
$2.00 Columbian (242). Mint
N.H., deep rich color on bright paper, detailed impressionVERY FINE AND CHOICE MINT NEVER-HINGED EXAMPLE OF THE $4.00 COLUMBIAN.
With 2002 P.S.E. certificate (Image)
$3.00 Columbian (243).
Original gum, lightly hinged, beautifully centered with wide balanced
margins on fresh paperEXTREMELY FINE GEM. AN OUTSTANDING ORIGINAL-GUM EXAMPLE OF THE $3.00 COLUMBIAN.
With 1999 P.F. certificate (Image)
$3.00 Columbian (243).
Original gum, lightly hinged, bright and fresh, choice centering with
nicely balanced marginsEXTREMELY FINE GEM. A BEAUTIFUL ORIGINAL-GUM $3.00 COLUMBIAN.
With 2001 P.F. certificate (Image)
$3.00 Columbian (243).
Bright shade, light strike of cancel leaves entire design clearly visible,
well-centeredEXTREMELY FINE GEM USED EXAMPLE OF THE $3.00 COLUMBIAN.
With 2003 P.F. certificate (Image)
$4.00 Columbian (244).
Choice centering with exceptionally wide margins, light New York circular
datestamp at top left leaves vast majority of design clearly visible,
bright and freshEXTREMELY FINE GEM. A HUGE BEAUTIFULLY CENTERED EXAMPLE OF THE $4.00 COLUMBIAN ISSUE. A TRUE CONDITION RARITY IN ALL FOUR C's -- COLOR, CENTERING, CANCEL AND CONDITION.
With 2002 P.F. certificate (Image)
$5.00 Columbian (245).
Original gum, barest trace of hinge at bottom right, almost perfect
centering with Jumbo margins, deep shade and sharp proof-like impression on
bright white paperEXTREMELY FINE GEM. A SUPERB AND HUGE-MARGINED ORIGINAL-GUM EXAMPLE OF THE $5.00 COLUMBIAN.
With 2002 P.F. certificate (Image)