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EXTREMELY FINE GEM. ONE OF THE FINEST EXAMPLES OF THE RARE 4-CENT COLUMBIAN ERROR OF COLOR. A PHENOMENAL STAMP.
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 additional 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.
Ex Zoellner. With 1984, 1998 and 2008 P.F. certificates (Image)
EXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED EXAMPLE OF THE 15-CENT COLUMBIAN ISSUE, WHICH HAS BEEN AWARDED THE GRADE OF SUPERB 98.
Along with the 10c value, this is among the couple most difficult of the non-dollar value Columbians to find in superb Mint N.H. condition.
With 2012 P.S.E. certificate (Superb 98; SMQ $11,100.00). Only one has graded higher (at 98J) and only five others share this grade (Image)
EXTREMELY FINE GEM. A SUPERB MINT NEVER-HINGED EXAMPLE OF THE 30-CENT COLUMBIAN ISSUE.
With 1975 P.F. and 2009 P.S.E. certificates (XF-Superb 95; SMQ $2,750.00) (Image)