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[Get Market Data for United States 230-240]
EXTREMELY FINE. A SUPERB MINT NEVER-HINGED PLATE BLOCK OF THE 3-CENT COLUMBIAN.
With 2018 P.F. certificate. Scott Retail as plate block of eight and two singles (Image)
[Get Market Data for United States 232]
FRESH AND FINE. A RARE MINT NEVER-HINGED EXAMPLE OF THE 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 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.
With 2018 P.F. certificate (Image)
[Get Market Data for United States 233a]
[Get Market Data for United States 235]
EXTREMELY FINE. A SUPERB PLATE BLOCK OF THE 50-CENT COLUMBIAN IN EXTRAORDINARILY FRESH CONDITION.
With 2000 P.F. certificate. Scott Retail as hinged (Image)
[Get Market Data for United States 240]
[Get Market Data for United States 240-243]
[Get Market Data for United States 241]
[Get Market Data for United States 242]