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VERY FINE. A RARE EXAMPLE OF THE 1907 ONE-CENT BALBOA WITH INVERTED CENTER AND OVERPRINT READING UP. ONLY 22 COPIES ARE KNOWN UNUSED.
According to Canal Zone Stamps, one pane of 100 was printed. It was sold in March 1909 to the Panama Railroad Co., and all but 22 copies were used before the error was discovered. Only about thirteen used copies were recovered after the error was noticed
With 1990 P.S.E. certificate (Image)
VERY FINE AND CHOICE EXAMPLE OF THIS RARE IMPERFORATE-BETWEEN VARIETY.
Only 20 pairs were printed. Signed Colman (Image)
VERY FINE. A STRIKING AND VERY RARE MISSING OVERPRINT VARIETY, OF WHICH JUST TEN PAIRS WERE PRODUCED.
This distinctive error was caused when the top row of the sheet missed receiving the overprint. Only ten pairs were produced with the missing overprint error.
With 1972 A.P.S. certificate (Image)